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geekhack Community => Off Topic => Topic started by: xargos on Thu, 07 July 2011, 21:23:41

Title: Dang... peroxide DOES burn
Post by: xargos on Thu, 07 July 2011, 21:23:41
Yes friends, peroxide does indeed burn the skin.

Being the silly person I am, I decided to bathe the keycaps from my recently acquired Northgate OmniKey 101 in a tub containing 40 vol peroxide with a dash of OxyClean.  You know, basically the liquid form of Retr0Bright (or however you choose to spell it).  Well, that's not the silly part.  What was silly was that I didn't put gloves on for protection.  Then I decided to try to push a keycap down (Scroll Lock, if you must know) that had come unstuck from the Fun-Tak I was using to hold it down.  Ouch!

Luckily I only took a minor burn to the right thumb, almost like touching a hot soldering iron.  Still, lesson learned.  Beware of peroxide!

At least the keycap is stuck back down and the process has begun.
Title: Dang... peroxide DOES burn
Post by: audioave10 on Thu, 07 July 2011, 23:50:08
Did you burn from heat, or chemical reaction?
Title: Dang... peroxide DOES burn
Post by: redpill on Fri, 08 July 2011, 01:14:47
Dude, wtf.  What concentration of peroxide was it?  Typically a normal 3% solution should not cause that type of issue.
Title: Dang... peroxide DOES burn
Post by: Oqsy on Fri, 08 July 2011, 01:21:59
Wow. My retrobrite solution got warm, but i hear it can get scary hot. If he used stronger h2o2 it could be either, but likely oxidation burn. Next time dose up on Vitamin C before trying that :P
Title: Dang... peroxide DOES burn
Post by: redpill on Fri, 08 July 2011, 01:27:11
Doesn't OxyClean have peroxide in it?  Maybe he just made a highly concentrated solution.
Title: Dang... peroxide DOES burn
Post by: Astounding on Fri, 08 July 2011, 02:12:54
Lesson learned, don't mix chemicals at random =P
Title: Dang... peroxide DOES burn
Post by: REVENGE on Fri, 08 July 2011, 02:34:11
Chemical burn, not a thermal burn. I've done this to a few of the fingers on my right hand when I got lazy and attempted to move a key that was covered in retrobright gel barehanded. I was using Clairoxide V40, which is apparently 12% H2O2, but the burn was not instantaneous. Invest in some cheap goggles and a pair of chemical resistant purple nitrile gloves. I believe that immersion is the way to go for whitening key caps.
Title: Dang... peroxide DOES burn
Post by: xargos on Fri, 08 July 2011, 11:48:25
Quote from: Astounding;375991
Lesson learned, don't mix chemicals at random =P

Believe me, it wasn't random.  This mixture is well documented around the web.  In all fairness everyone does say to use gloves.

Quote from: REVENGE;375996
Chemical burn, not a thermal burn. I've done this to a few of the fingers on my right hand when I got lazy and attempted to move a key that was covered in retrobright gel barehanded. I was using Clairoxide V40, which is apparently 12% H2O2, but the burn was not instantaneous. Invest in some cheap goggles and a pair of chemical resistant purple nitrile gloves. I believe that immersion is the way to go for whitening key caps.

Bingo.  Chemical burn.  Still, it felt like grabbing a soldering iron.

I was using "Victoria USA Liquid Peroxide" since I could get it for less than Clairoxide, but it was the same 12% strength.  The mixture seems to last a couple of days and more keycaps lifted overnight, so I removed the keycaps from the bath this morning and will stick them back down and pour the mixture back in tonight.  With gloves, of course.
Title: Dang... peroxide DOES burn
Post by: vils on Fri, 08 July 2011, 12:37:52
I tiled my mother's bathroom last summer. It was messy and hot so I skipped gloves. After an hour and so I felt an burning sensation on my "soapy" hands. Vinegar helped to stop the burning but I can still feel the pain.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Fri, 08 July 2011, 13:31:48
Is maybe the safest, most foolproof way (for keycaps) to put the hydrogen peroxide only and keycaps in a jar, close the lid and wait? Sun/no sun as an option?

No mixing, no sticking with tape, less to go wrong, blah, blah, blah.
Title: Dang... peroxide DOES burn
Post by: alaricljs on Fri, 08 July 2011, 13:55:10
Where's the excitement, where's the adventure, where's the inevitable 'I screwed up' thread?
Title: Dang... peroxide DOES burn
Post by: xargos on Fri, 08 July 2011, 14:04:53
Quote from: alaricljs;376318
Where's the excitement, where's the adventure, where's the inevitable 'I screwed up' thread?

True enough.  What is life without these things?
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Fri, 08 July 2011, 14:10:15
Quote from: alaricljs;376318
Where's the excitement, where's the adventure, where's the inevitable 'I screwed up' thread?
Quote from: xargos;376331
True enough.  What is life without these things?

Save all that for girls.
Title: Dang... peroxide DOES burn
Post by: The Solutor on Fri, 08 July 2011, 14:20:56
Quote from: ripster;375981
Oxyclean is the catalyst.  Not strictly needed but makes things go faster.

 
Oxyclean is Sodium percarbonate (http://en.wikipedia.org/wiki/Sodium_percarbonate) which is, more or less, solid hydrogen peroxide.

So retrobrite is a pointless mix between two forms of the same component.

As already suggested a mix of 50% hydrogen peroxide and 50% of ammonia (two different kinds of oxidizers) is way more effective (and less expensive) solution.
Title: Dang... peroxide DOES burn
Post by: The Solutor on Fri, 08 July 2011, 14:27:32
Quote from: ripster;376351

It makes it go faster.

 

Obviously it go faster, the solution is more concentrated.

The same  happen if you use just retrobright or just a more concentrated hydrogen peroxide solution.
Title: Dang... peroxide DOES burn
Post by: TexasFlood on Fri, 08 July 2011, 14:38:08
Quote from: ripster;376338
Wimps.

Just think what a porn star has to go through.
If we don't know should we go do some research?
Title: Dang... peroxide DOES burn
Post by: The Solutor on Fri, 08 July 2011, 14:42:34
Quote
It makes it go faster.


Not always a good thing...:redface:
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Fri, 08 July 2011, 15:53:54
Amazing is how a thread about xargos burning his arm completely off at the stump, has turned into one of the more humorous highlights of the day.
Title: Dang... peroxide DOES burn
Post by: alaricljs on Fri, 08 July 2011, 16:06:32
Almost makes me want to google it to find out what it really is they go through... mmmm nah.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Fri, 08 July 2011, 16:09:44
Quote from: alaricljs;376403
Almost makes me want to google it to find out what it really is they go through... mmmm nah.

Just watch one. It's brutal. Seeing only one was actually more than one too many for me. Icky-poo.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Fri, 08 July 2011, 16:19:19
Quote from: The Solutor;376348
Oxyclean is Sodium percarbonate (http://en.wikipedia.org/wiki/Sodium_percarbonate) which is, more or less, solid hydrogen peroxide.

So retrobrite is a pointless mix between two forms of the same component.

As already suggested a mix of 50% hydrogen peroxide and 50% of ammonia (two different kinds of oxidizers) is way more effective (and less expensive) solution.

I may Retrobrite this weekend. False_Dmitry_II bottom lined it down to pure hydrogen peroxide only. http://geekhack.org/showwiki.php?title=Island:9099&do=comments&page=3
Title: Dang... peroxide DOES burn
Post by: TexasFlood on Fri, 08 July 2011, 16:33:26
Quote from: input nirvana;376412
I may Retrobrite this weekend. False_Dmitry_II bottom lined it down to pure hydrogen peroxide only. http://geekhack.org/showwiki.php?title=Island:9099&do=comments&page=3
Am I misreading? Looks like False_Dmitry_II is advocating only Sodium Percarbonate at the link above.
Title: Dang... peroxide DOES burn
Post by: alaricljs on Fri, 08 July 2011, 16:33:41
Quote from: input nirvana;376404
Just watch one. It's brutal. Seeing only one was actually more than one too many for me. Icky-poo.

Watch one?  You mean they film anal bleaching?
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Fri, 08 July 2011, 16:38:55
Quote from: TexasFlood;376418
Am I misreading? Looks like False_Dmitry_II is advocating only Sodium Percarbonate at the link above.

I sent him a PM for clarification.


"Why is the sky gray?
Why is the grass gray?
Why is a rainbow gray, gray, gray, gray, gray, and infra-gray?"

P.S. -Your sig has me screaming!!! lol
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Fri, 08 July 2011, 18:01:14
Quote from: TexasFlood;376418
Am I misreading? Looks like False_Dmitry_II is advocating only Sodium Percarbonate at the link above.

He confirmed.

I'm getting Oxy-Clean only and trying it this weekend. I'll take before/after pics and report.
Title: Dang... peroxide DOES burn
Post by: REVENGE on Fri, 08 July 2011, 18:07:11
Quote from: input nirvana;376303
Is maybe the safest, most foolproof way (for keycaps) to put the hydrogen peroxide only and keycaps in a jar, close the lid and wait? Sun/no sun as an option?

No mixing, no sticking with tape, less to go wrong, blah, blah, blah.

Good way to go if you have the time, the whitening seems to come out more evenly.
Title: Dang... peroxide DOES burn
Post by: The Solutor on Fri, 08 July 2011, 18:41:41
Quote from: input nirvana;376503
He confirmed.

I'm getting Oxy-Clean only and trying it this weekend. I'll take before/after pics and report.

 
Any Oxidizer will be fine, sodium perborate, sodium percarbonate, Hydrogen peroxide, Sodium hypochlorite, alone they are good, if combined with Ammonium hydroxide (aka as just ammonia) are better.

Pay attention !! use them not in a closed space, and  manage them carefully, with gloves and eyeglasses. As they are relatively dangerous agents.
Title: Dang... peroxide DOES burn
Post by: TexasFlood on Fri, 08 July 2011, 20:05:33
Quote from: input nirvana;376423
P.S. -Your sig has me screaming!!! lol

Thanks, it made me chuckle last night, took me a moment to get it actually, had to use it, :biggrin:
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Fri, 08 July 2011, 20:14:57
I just bought 6 pounds of Oxy-Clean for about $7. I have no idea how much to dissolve in water. Tomorrow as the fog clears (I live on the beach in California) I'll dump a bunch in a clear tub outside and see what happens. I'll take pics too.
Title: Dang... peroxide DOES burn
Post by: litster on Fri, 08 July 2011, 20:16:31
Quote from: input nirvana;376563
I just bought 6 pounds of Oxy-Clean for about $7. I have no idea how much to dissolve in water. Tomorrow as the fog clears (I live on the beach in California) I'll dump a bunch in a clear tub outside and see what happens. I'll take pics too.

look forward to your results.  lopan and I may be doing this on Sunday.  Oh, and get back to me on the switch thing... ;)
Title: Dang... peroxide DOES burn
Post by: The Solutor on Fri, 08 July 2011, 20:27:54
Quote
I live on the beach in California


Quote
I just bought 6 pounds of Oxy-Clean



I'm afraid is not enough for all that water...:party:
Title: Dang... peroxide DOES burn
Post by: TexasFlood on Fri, 08 July 2011, 20:30:49
Quote from: input nirvana;376563
I just bought 6 pounds of Oxy-Clean for about $7. I have no idea how much to dissolve in water. Tomorrow as the fog clears (I live on the beach in California) I'll dump a bunch in a clear tub outside and see what happens. I'll take pics too.

What are you using it on?  Most of the Retrobrite experiments I've seen are bleaching "classic" home computer gear cases back to the original beige, beige, beige, beige, beige, and infra-beige, :wink:
Title: Dang... peroxide DOES burn
Post by: TexasFlood on Fri, 08 July 2011, 20:52:19
Quote from: input nirvana;376563
I live on the beach in California

I just bought 6 pounds of Oxy-Clean

I have no idea how much to dissolve in water.

Tomorrow as the fog clears I'll dump a bunch in a clear tub outside and see what happens. I'll take pics too.

 
Quote from: The Solutor;376568
I'm afraid is not enough for all that water...:party:

 
I'd advise you to take your pictures from down the beach.

(http://farm5.static.flickr.com/4094/4950276577_e4a2fb9341_z.jpg)
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Fri, 08 July 2011, 20:54:15
Quote from: TexasFlood;376571
What are you using it on?  Most of the Retrobrite experiments I've seen are bleaching "classic" home computer gear cases back to the original beige, beige, beige, beige, beige, and infra-beige, :wink:

 
LOL!  :)

I'm trying to take an older white Kinesis Contour that is heavily yellowed and restore the color. The older whites were almost a very, very light creme/beige/off white, the newer ones being white.

Quote from: ripster;376572
6 pounds of Oxyclean?
 
Good Luck!

 
If it doesn't work well, I guess I can use it in my laundry for the next couple years.
Title: Dang... peroxide DOES burn
Post by: The Solutor on Fri, 08 July 2011, 21:02:06
Quote from: TexasFlood;376571
What are you using it on?  Most of the Retrobrite experiments I've seen are bleaching "classic" home computer gear cases back to the original beige, beige, beige, beige, beige, and infra-beige, :wink:

 
Funnily enough, I never had a beige PC /Home computer, since 1982.

TI99/4a, ZX spectrum, Sinclair QL, two Olivetti Envision were all blacks, then i bought only black cases and keyboards, with the exception of a couple of (great) Olivetti keyboards (shades of gray)
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Fri, 08 July 2011, 21:16:02
If someone has a guideline, or an idea, or a quarter to flip and decide....how much of a concentration should I make?
Title: Dang... peroxide DOES burn
Post by: xargos on Fri, 08 July 2011, 21:38:40
Quote from: The Solutor;376588
Funnily enough, I never had a beige PC /Home computer, since 1982.

TI99/4a, ZX spectrum, Sinclair QL, two Olivetti Envision were all blacks, then i bought only black cases and keyboards, with the exception of a couple of (great) Olivetti keyboards (shades of gray)

You missed the beige party!  

After having a TI 99/4A for my first computer, it took until probably about 2002 for me to have anything but beige computers and peripherals.  By that point most cases that I considered decent were black. Still, if I could find cases like the Antec Solo in beige, I probably wouldn't have a black computer now.
Title: Dang... peroxide DOES burn
Post by: The Solutor on Fri, 08 July 2011, 21:54:53
Quote from: input nirvana;376597
If someone has a guideline, or an idea, or a quarter to flip and decide....how much of a concentration should I make?

 
I never used it, but I think that something in between 4x the suggested dose for laundry, to a saturated solution should be fine

Quote
After having a TI 99/4A for my first computer, it took until probably about 2002 for me to have anything but beige computers and peripherals. By that point most cases that I considered decent were black. Still, if I could find cases like the Antec Solo in beige, I probably wouldn't have a black computer now.


I'm not used to follow the trends so when all PC were beige, I went for black, now that most pc are black I would consider something beige, but the lack of standardization continue to drive me crazy.

Shouldn't be that hard to standardize the shades of beige, like the electrical equipment makers did in Europe (well before the born of CEE/UE).

If I want a beige wall plug, I can buy one from the Italians B-Ticino or Vimar, the French Legrand, the  German Siemens and so on, and I'll get the same shade of beige, or gray, or anthracite, or whatever...

BTW my actual case is an Antec Lanboy Air (yellow)

(http://www.antec.com/images/400/lanboyair_Yquarter1.jpg)
Title: Dang... peroxide DOES burn
Post by: TexasFlood on Fri, 08 July 2011, 22:25:24
Quote from: input nirvana;376597
If someone has a guideline, or an idea, or a quarter to flip and decide....how much of a concentration should I make?
Take a lesson from xargos, getting it in the solution is easy, pulling out without getting burned is hard, :wink:.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Fri, 08 July 2011, 23:16:33
Quote from: TexasFlood;376626
Take a lesson from xargos, getting it in the solution is easy, pulling out without getting burned is hard, :wink:.

Xargos? Oh, you mean Stumpy? Ya, I think he's coming over for as a safety consultant with a bottle of Jack Daniels and a video camera.
Title: Dang... peroxide DOES burn
Post by: TexasFlood on Fri, 08 July 2011, 23:25:57
Nothing like alcohol to enhance handling hazardous materials.  As Stephen Colbert recently, and woefully, reported in his “Fourth Of July Under Attack” segment, the Texas ban on the sale of fireworks is shutting down the small businesses that made our great nation’s name: “Shabby, cash-only, roadside shacks that sell Chinese explosives to drunk people.” Oh, and I think there may have been an oblique reference to your avatar in that last post somewhere.
Title: Dang... peroxide DOES burn
Post by: TexasFlood on Fri, 08 July 2011, 23:29:03
Nothing like alcohol to enhance handling hazardous materials.  As Stephen Colbert recently, and woefully, reported in his “Fourth Of July Under Attack” segment, the Texas ban on the sale of fireworks is shutting down the type of small businesses that made our great nation’s name: “Shabby, cash-only, roadside shacks that sell Chinese explosives to drunk people.” Oh, and I think there may have been an oblique reference to your avatar in that last post somewhere.
Title: Dang... peroxide DOES burn
Post by: TexasFlood on Fri, 08 July 2011, 23:39:30
Nothing like alcohol to enhance handling hazardous materials.

Reminds me of the Colbert Report which recently, and woefully, reported in the “Fourth Of July Under Attack” segment that the Texas ban on the sale of fireworks is shutting down the type of small businesses that made our nation great - “Shabby, cash-only, roadside shacks that sell Chinese explosives to drunk people.”

Oh, and I think there may have been an oblique reference to your avatar in that last post somewhere.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sat, 09 July 2011, 00:02:23
Colbert...that hack! Xargos is bringing Colbert tomorrow to emcee the days activities. Colbert wants us to wear blindfolds throughout the day. Something about "The Great American Truth".

I look forward to it. Sounds like fun.

The avatar reference...wasn't too sure. Now I am :)
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sat, 09 July 2011, 10:23:46
Doing some jumping jacks and stretching...getting ready for the big event today. Still not sure how to have keycaps stay right-side up, but I'm mostly going to address the keyboard case to see how the mixtures work.

Security is here to deal with some of the usual protesters...

(http://cdn.complex.com/blogs/wp-content/uploads/2009/09/bikini.jpg) (http://www.bundyology.com/sfg/623a.jpg)
Title: Dang... peroxide DOES burn
Post by: The Solutor on Sat, 09 July 2011, 10:35:41
Quote from: input nirvana;376866

Security is here to deal with some of the usual protesters...

Show Image
(http://cdn.complex.com/blogs/wp-content/uploads/2009/09/bikini.jpg)

 
Tactoblacks ?
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sat, 09 July 2011, 10:37:27
Quote from: The Solutor;376872
Tactoblacks ?

I never got around to reading the contracts fine print...
Title: Dang... peroxide DOES burn
Post by: litster on Sat, 09 July 2011, 10:49:04
Lopan and I maybe doing this today with our yellow teeth, I mean keycaps.  He suggested to put the glass container on top of a mirror so keycaps facing down also get light from the reflection.  We are going to try that.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sat, 09 July 2011, 15:12:06
One hour into the process. Foggy, but sun breaking through. Used 9 gallons of hot tap water and 27 (20cc) scoops which is 3+ times the strongest mixture they recommend for anything. Doesn't burn me at that concentration, so maybe not strong enough. I believe the case is less yellow, keys I'm not so sure. Having a hard time dealing with keys.

I'll let you know at the end of the day what I think.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sat, 09 July 2011, 18:15:16
UPDATE:
I used 9 quarts (2 gallons, 1 quart) of very warm water in a clear tub and 27 scoops of OxyClean.
Recommended directions-1/8 scoop per 16oz (1 scoop per gallon) their strongest mixture for wood decks, patio furniture, etc. (I would have used 2 1/4 scoops by directions) so I am about 10 times the strongest recommended solution.
60-65 degree day
12-1 foggy but could see sun (case seemed lighter, no difference on keys)
1-2  sunny (case definitely lighter, close to original, keys lighter.)
2-4 sunny (case close original, keys much lighter) Keys lightening proportionately. worst keys still a little yellow, all other keys seem close to original.
4-and later foggy

I could stop now, but I will leave it in through tomorrow in the sun and see if it changes any more. It's at 90% as it sits. Or maybe should be stronger? It doesn't do anything to my hands at all. Not convinced this mixture is lethal, silly consumer products. This is so much easier without buying different items, mixing, blending. Just put in liquid and stir around. Not that involved, I don't see any downside.

I'll evaluate as I leave the keys in overnight and maybe in the sun tomorrow.

I'll post then.

I blew off the pics. Trust me. It goes in yellow, comes out a lot less yellow, and is cheap and easy.

EDIT- The lightening process seems to have slowed/stopped. Maybe because sun is decreased or the solution is reacted out?
Title: Dang... peroxide DOES burn
Post by: litster on Sat, 09 July 2011, 18:59:12
lopan and I are getting similar result.  It is a perfect day to do this in Seattle as we don't get sun everyday.  OxyClean has a lot of filler so it makes the water very muddy.  But the solution still works.  After a could of hours under the sun it is obviously a few shades lighter than before, especially viewed under direct sunlight.  Under the shades the difference is not as obvious.

In the picture, the larger Zero key was not in the OxyClean solution, so it is the control (shouda used the Control key :-)).  The V key and the 5 key were in the solution.  They are obviously lighter.

(http://geekhack.org/attachment.php?attachmentid=20285&d=1310255416)

I use a thin clear plastic box to keep the keys facing up.

(http://geekhack.org/attachment.php?attachmentid=20287&d=1310255863)
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sat, 09 July 2011, 19:02:14
What is your mix ratio?
Title: Dang... peroxide DOES burn
Post by: litster on Sat, 09 July 2011, 19:04:04
That can of OxyClean, I used about 1/3 of it.  It is actually about 10 years old.  And you see all the water I used in the picture :)  LOL!  I don't know what the ratio was!  Probably way too much.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sat, 09 July 2011, 19:10:57
Wow! Half pound of Oxy with a little water...must not be much more than paste! Of course the Oxy could possibly be weak as it may have lost some of its reaction ability. Yours must be much, much stronger than mine.
Title: Dang... peroxide DOES burn
Post by: litster on Sat, 09 July 2011, 19:23:33
Quote from: ripster;377067
These pics are making someone in Heaven so happy!

Who died?
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sat, 09 July 2011, 19:25:21
Billy Mays
Title: Dang... peroxide DOES burn
Post by: litster on Sat, 09 July 2011, 19:26:25
Ah.  May Billy rest in peace.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sat, 09 July 2011, 19:32:12
I thought it was from a snowball.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sat, 09 July 2011, 19:34:39
Heh heh.

Brutal.
Title: Dang... peroxide DOES burn
Post by: audioave10 on Sat, 09 July 2011, 19:51:13
I missed that story in the newspaper.

(http://www.untoldentertainment.com/blog/img/2008_08_24/headexplode.jpg)
Title: Dang... peroxide DOES burn
Post by: litster on Sat, 09 July 2011, 20:09:25
Of course the mess was cleaned up using OxyClean!
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sat, 09 July 2011, 20:11:14
Buh-BAM!
Title: Dang... peroxide DOES burn
Post by: TexasFlood on Sat, 09 July 2011, 20:29:15
Billy Mays, The Man, The Myth, The Legend, The Pitchman, the Shouter

(http://pictures.mastermarf.com/blog/2009/090629-billy-mays-shout.jpg)
Title: Dang... peroxide DOES burn
Post by: litster on Sat, 09 July 2011, 23:38:44
Input Nirvana, how did your yellow stuff turn out after a day in the sun?
Title: Dang... peroxide DOES burn
Post by: xargos on Sat, 09 July 2011, 23:54:40
What a thread this has turned into!  Walk away from the computer for a day and who knows what will happen.

Quote from: input nirvana;376666
Xargos? Oh, you mean Stumpy? Ya, I think he's coming over for as a safety consultant with a bottle of Jack Daniels and a video camera.

Proper use of JD or other alcoholic beverages may help to lessen the pain in the event of a peroxide burn.  It may also lead to crazy antics that require use of a video camera for later recollection.

Quote from: litster;377209
Input Nirvana, how did your yellow stuff turn out after a day in the sun?

In all seriousness, though, I'm curious about this myself.  The keys came out pretty well as expected, but the casing of the OmniKey 101 is pretty yellowed too.  If a good soak with OxiClean in water exposed to UV works, that will make dealing with the casing easier.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sat, 09 July 2011, 23:55:59
Good, I left everything in the juice outside. I'll check it in the morning, maybe rinse it off to get a good look. If there is any yellow left on some of the worst keys, maybe I'll make another poison dip. Depends on sun also. I think the sun affects it a lot. I'd say it's at 90-95%. I'm pretty pleased considering I didn't go through all the hoops with all the various ingredients and hassles. All I can say now is that's it'r a no-brainer. I'll do the other 2 keyboards without question...there is no downside. I don't know if I needed more sun, more Oxy, or more time to clean up about 15 of the most yellowed keys. I'll find out tomorrow. I'm sorry I waited so long to do this!

Don't make it more complicated than you need:
-Oxy-Clean (I used a mix 10 times stronger than recommended)
-water
-sun (it was working while it was overcast)
-I don't know if temperature affects the reaction.

What is your guys story?

P.S.- Hi Stumpy! Glad you're back and ok! lol
Title: Dang... peroxide DOES burn
Post by: litster on Sun, 10 July 2011, 00:03:04
Just like you, I am leaving mine out over night, and it is going to get some more sun beginning at 5:22am (http://www.sunrisesunset.com/).  I plan on leaving it out the whole day tomorrow.  Forecast tomorrow is sunny with 100% chance of OxyClean!
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sun, 10 July 2011, 00:09:42
I don't know enough about the process to know if the chemicals are used up. I guess I could throw a black sock and see if it turns white. If the last few keys don't un-yellow all the way in a couple hours in the sun, I'll add a bit more Oxy and call it good. No matter what, this has already been a success.
Title: Dang... peroxide DOES burn
Post by: xargos on Sun, 10 July 2011, 00:09:45
Quote from: input nirvana;377217

Don't make it more complicated than you need:
-Oxy-Clean
-water
-sun (it was working while it was overcast)
-I don't know if temperature affects the reaction.

What is your guys story?

I used the peroxide and OxiClean mixture under florescent black lights (for a UV light source) to good effect.  

From everything I've read regarding Retr0Bright, UV light accelerates the reaction and adding heat is not necessary.  In fact, adding heat mostly increases the likelihood of causing the plastic to warp.  This should also hold true for the water and OxyClean method since it works based on the same chemical reaction.

Now I just need something big enough to hold the keyboard casing in so I can treat it.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sun, 10 July 2011, 00:15:45
Quote from: xargos;377225
I used the peroxide and OxiClean mixture under florescent black lights (for a UV light source) to good effect.  

From everything I've read regarding Retr0Bright, UV light accelerates the reaction and adding heat is not necessary.  In fact, adding heat mostly increases the likelihood of causing the plastic to warp.  This should also hold true for the water and OxyClean method since it works based on the same chemical reaction.

Now I just need something big enough to hold the keyboard casing in so I can treat it.

Dollar store, Target, Walmart or similar for clear plastic storage containers with lids. You can use these for stuff later. 12"x18"x8" tall (or taller) about $5. Bins twice that size about $9.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sun, 10 July 2011, 00:31:03
I'm reporting you for saying "flowering pinguicala"

The one thing that concerned me was the "mottling effect" you had.
Title: Dang... peroxide DOES burn
Post by: litster on Sun, 10 July 2011, 00:34:46
Absolutely the paste is best for large objects.  liquid may be easier with smaller objects like keycaps.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sun, 10 July 2011, 00:41:24
Your pics of that SGI is what made the impression on me. Interesting observation about the paste.

Another reason I wanted to do the liquid method, is that there are less steps, less to do, less material, just an overall more simple process. If it didn't work well enough, I can always ramp up to the paste.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sun, 10 July 2011, 11:44:42
Nothing seems to have happened overnight.
You can see some of the keycaps are yellow in comparison to the others. It's relative, as they were more yellow than the others before the process. In the sun now, stir every 20 mins, and we'll see how it turns out in a couple more hours. Maybe more oxy if needed. But I'm still impressed and happy with the results.

Keeping the process simple.
[ATTACH=CONFIG]20354[/ATTACH] [ATTACH=CONFIG]20353[/ATTACH]

I used a small redwood shim to stir/mix/position. It's not "red"wood anymore. maybe that is why the water is so dirty. Maybe weakened the solution as well.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sun, 10 July 2011, 17:41:48
UPDATE:

Case is absolutely new. Makes a 1 year old case I have actually look 1 year ancient.

Keys have a few holdouts so I put them in a new solution about 16 times stronger than recommended in a 20 oz. clear bottle. They can sit there for as long as it takes (days). Today only a couple hours of direct sun, and mostly overcast. If the keys come out as good as the case, I will consider this an absolute success. I've used about 40% of the 6 pounds of generic oxy since I have a big tub for the cases.

I've put a second set of keys in a 32 oz. bottle, and another full scoop of oxy in the tub to freshen it up and popped in another case.
Title: Dang... peroxide DOES burn
Post by: TexasFlood on Sun, 10 July 2011, 17:50:46
Can't wait to see some pics.  I would assume there was some sediment over time, probably mostly filler, unless you saturated the solution, not sure how much it would take to do that.
Title: Day 2 of OxyClean on Wyse
Post by: litster on Sun, 10 July 2011, 20:07:20
Almost end of day of day 2.  Here is another picture of the current result.  The  wide keys 0 (zero) and Ctrl were never in the solution, and are the controls.  W, P, C, F14, F16 were in the solution for over 24 hours straight.  W, P, C are obviously much lighter than the yellow zero key.  The grey keys' result is not as obvious, but you can tell F14 and F16 are both losing their previous yellow tint, comparing to the Ctrl key.

(http://geekhack.org/attachment.php?attachmentid=20361&d=1310345849)

The picture below was taken right after I cleaned the keys and put them on to a Filco.  WB may not be right on that picture (taken with an iphone), but you can see the C and X keys were lighter for some reason at that time.  Comparing to the new picture, W and P have almost caught up with C.

(http://geekhack.org/attachment.php?attachmentid=19100&d=1307993599)

This has been a success.  I will keep them in the solution for another day to see how much lighter can they get, and if other keys can be at the same color as the C and X keys.
Title: Dang... peroxide DOES burn
Post by: The Solutor on Sun, 10 July 2011, 20:19:12
Quote
This has been a success. I will keep them in the solution for another day


Now you know why I'm called the solutor :)
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sun, 10 July 2011, 20:52:07
Litster,

Seems that you are getting virtually the same results with a fairly similar set of processes as I am. So I guess that would make us consistent! Another day, hopefully with more than 3 hours of direct sun will be the final testament for me.

I'm so pleased, that I'm going to disassemble the remaining 2 white Kinesis Contoureds I have for sale, and brighten them up. Not that I will make more money or sell them easier, but I believe it will make the new owners happier. Plus, I have over 3 pounds of oxy left over. I'll see if I can make a paste tomorrow to see how it compares (this has been interesting) but I gave my blender away last fall :(
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Mon, 11 July 2011, 19:32:05
Damn foggy beach days! I can see the sun almost all around me, but I live on a peninsula, so I'm often under a fog bank. No progress today. :(

I'm going to buy glycerin and xanthan gum tonight so I can play with the paste, Might as well learn something while I'm at this. How to mix without blender?

Picture outside with iPhone and the sun popping in and out of fog was tough, but you can tell the bottom of the case is pretty yellow (yes, that's yellow). The top has got to be virtually original. The photos don't quite capture how good it came out. It's dramatic.

[ATTACH=CONFIG]20403[/ATTACH] [ATTACH=CONFIG]20404[/ATTACH]
Title: Dang... peroxide DOES burn
Post by: litster on Tue, 12 July 2011, 02:24:53
Got the Wyse keys out of the solution this evening.  Washed and dried them.  Here they are on the same white Filco as previously, with added modifiers form a second set of Wyse keycaps that are thinner.  You can't really tell that X and C keys are lighter than others.  All the keys are about the same shade.  

Now I am out of yellow keys to OxyClean!

(http://geekhack.org/attachment.php?attachmentid=20438&d=1310455315)
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Tue, 12 July 2011, 10:57:33
The picture makes it look new. So you think you are at 95% or better at this point?

Did your solution work even without sunlight? I know your solution was probably much stronger than mine (so far, mine at about 16x recommended). I don't notice any change without sun.
Title: Dang... peroxide DOES burn
Post by: litster on Tue, 12 July 2011, 11:43:34
I think I am done.  95%+.  I don't know if the solution works without sunlight.  Next time the experiment would be to do the exact same thing but do it indoor.  

Also, I just realized this thread is under off topic.  We should move the content back to the wiki thread so n00bs can find this later :)

Haters gotta hate, teachers gotta teach!  I learned something this pass weekend!
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Wed, 13 July 2011, 23:41:37
UPDATE:
I finally had some sun today for about 3+ hours. I've taken the 2 sets of keycaps out of the jar containers and have some results and possible cautions to report.

Both sets of keycaps are white (off white) Kinesis Contour keycaps with 8 medium-blue home row keycaps. Set 1 is decal, set 2 is doubleshots.

Keycaps results:
There are some keycaps that appear new original, and there are keycaps that still have very little yellow. It's 90% or better.
Keycap set 1-(10x solution 1 day, 16x solution 3 days) started a medium yellow. It lightened the 8 dark keycaps slightly.
Keycap set 2-(16x solution 3 days) started a very heavy yellow. It lightened the 8 dark keycaps significantly. Now they are powder blue.
Both sets of keycaps, even though started out very, very different shades, appear the same now.

Initially I was surprised and disappointed to see the 8 home row keycaps significantly lighter, but once I put them on, I like them considerably better, they're not old-school industrial retro-blue anymore. Plus, they are the doubleshots, which I think are overrated, but I'm keeping anyhow. So fortunately, no downside. But that is a BIG caution if you are dealing with some reto-thing you might be restoring...having the color leach out or get bleached could possibly ruin your day.

I don't think the OxyClean was very powerful when I dumped it out after 3 days. My hands aren't dried out like when I mixed it. I'm thinking the best choice is to use a stronger solution in bright light for a shorter period of time, rather than let them sit for days on end. My solution was just OxyClean and water. I didn't use hydrogen peroxide (instead of water) which I think is what makes the solution very toxic and super-strong.

I will wait until our local foggy season is over before I do anything else. No sense fighting the fog for days. I'm planning on popping all the keys in solution again for half a day+ in full sun for a final, yellow-B-gone, 95%+ or better finish. I'll also wait to do the glycerin and xanthan gum paste at that time as well.

I'll post a couple pics tomorrow of some comparison results.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Thu, 14 July 2011, 14:56:21
Keycaps and duration in OxyClean. The lightest keycap seems the most evenly colored since it is a doubleshot and there is no clear surround like on a decal. The other keycap is blotchy (I first thought it was warped), I'd rather have it lighter, I'll work on that later.

EDIT--I've just noted that REVENGE has either retrobrited or used denture tabs on doubleshot Kinesis Contoured keycaps and has the same lightening of the blue as I have here. So it's not necessarily the exact method I used that may be "at fault". It may just be a function of the plastics used.

Oxy 4 days, no oxy, oxy 3 days (doubleshot keycap)

[ATTACH=CONFIG]20811[/ATTACH]

No oxy, oxy 4 days, oxy 3 days (doubleshop keycap)

[ATTACH=CONFIG]20812[/ATTACH]

The keycaps in oxy 3 days were in a 20oz jar. (doubleshots)
The keycaps in oxy 4 days were in a 32oz jar.
They were both about 16x recommended solution.

(maybe should retake photos so they are the same line up)

These are the doubleshot keycaps at 90% or better. They WERE the same exact color as the case, as though the whole keyboard was dipped in yellow (no before pic). Note the bright blue graphic on the front of the left arrow keycap, and the black DVORAK legends, these did not change. The light blue I think is nicer (than the darker and dated industrial color), either with a white or black case.
[ATTACH=CONFIG]20829[/ATTACH]

Close up of the doubleshots and original yellowed case with foggy lighting/and black case with sunny lighting (you can see a tiny bit of yellow still  or maybe that's just off-white).
[ATTACH=CONFIG]20832[/ATTACH] [ATTACH=CONFIG]20853[/ATTACH]

EDIT--The lightest "A" keycap (the right keycap in the first 2 pics, and only A in the bottom pics) is the same keycap in all pics. The 2 close ups make it not look blue at all.

Also, doubleshots seem overrated to me, at least with these Kinesis Contoured keycaps are concerned.
Title: Dang... peroxide DOES burn
Post by: Oqsy on Thu, 14 July 2011, 23:17:31
Thanks for sharing your results, guys.

I've tried two soaks for my pee-stained Northgate caps this week. Both with Oxy saturated to the point that it would take no more. The first soak was without peroxide, in 104 deg sun for 3 hours, 20% improvement. Did the same again (midday sun 3 hrs)the next day with a cup of peroxide added, no noticeable change, maybe another 5%(so less effect than just Oxy!). I suspect my 10 yr old tub of Oxy is to blame for my slow progress. I would have left the 2nd soak out longer, but I was paranoid about overdoing the mix by adding peroxide. I might try again this weekend with a new tub of OxyClean. Are there possible tapwater additives that could inhibit the reaction?

I mix the Oxy in a bottle with tapwater, filling the bottle 50% with Oxy powder, then topping with tapwater and shaking it like hell until it won't dissolve any more and the Oxy sediment stays put no matter how much I shake it. Then i pour off the liquid onto the keycaps, and repeat until they're covered, only stopping to add more powder when i cant see much sediment in the bottom of the bottle.

I've had great luck with the "standard" recipe before on Cherry caps, but these doubleshot Northgate caps are a real pain!
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Thu, 14 July 2011, 23:25:21
HOLY ****!!!!  There will be an Oxy shortage if you aren't stopped!  The keys are ok? What color are they? Are you sure the sun makes a difference? I ask because Oxy used as directed says nothing about sunlight to brighten your clothes or take stains out of wood, blah blah blah, and the recommended mixes are almost nothing compared to your mud-mix....

I've got bleached keycaps...(see my post pics above)

Peroxide is a different story.
Title: Dang... peroxide DOES burn
Post by: Oqsy on Fri, 15 July 2011, 00:33:50
Not bleached, still very yellow. Only 20-25% improvement in color. As I said, my tub is a decade old and likely worthless.

The snakeskin texture was a fear when adding the peroxide for round two, but that soak made even less difference.

Oqsy has broke Oxy.

Also, I wore thick shoulder gloves and goggles :P
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Fri, 15 July 2011, 00:51:35
Weird. Not consistent with our results it sounds like. I tried to give as much info as possible without making this any more of a hassle than it already is. Hence no "before" pics, but I have enough to compare. As you can see, I had some yellow ****. Seriously yeller. I wonder if oxy can go bad? I wouldn't think so. Peroxide will of course. You and litster used WAY stronger mixes than me, and I sucked half the blue out of those keycaps I show, and lightened the blue portion/legends on the other keys (doubleshots). Good thing I like the color better now. But if I get my hands on more doubleshots, I'll do it differently. It didn't affect the blue decal legends on the non-doubleshots.

Don't misunderstand, still happy with everything.

In the end, I'm gonna sandblast non-doubleshots and have NO legends.
Title: Dang... peroxide DOES burn
Post by: Oqsy on Fri, 15 July 2011, 00:58:42
Just read the FAQ. Mine was "clumpy" and likely comprmised. I will try again with a new batch.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Fri, 15 July 2011, 01:05:51
Just say "NO" to clumpy....

[ATTACH=CONFIG]20883[/ATTACH]
Title: Dang... peroxide DOES burn
Post by: REVENGE on Fri, 15 July 2011, 21:15:22
Holdon a second, clarify what you mean by "oxy": hydrogen peroxide, or the catalyst compound in "oxy" detergents and cleaners? I don't think you should be saturating your solution with the catalyst.
Title: Dang... peroxide DOES burn
Post by: Oqsy on Fri, 15 July 2011, 23:48:15
OxiClean is being used in this method without peroxide (i did a test on a second soak with a cup of peroxide). Illster and InputNirvana were trying soaks with greater than suggested concentrations to see if OxiClean soaks alone could be substituted. I took it a step beyond by maxing the level of OxiClean in the solution. They have proven that this method DOES lighten yellowed (or blue) keys. I have proven nothing besides my 10yr old tub with clumps was much less potent.

If the desired results are obtained without using high concentrations of H2O2, this could well be a simpler, and possibly safer, method.

Yes, in the "traditional" retr0brite recipe, TAED(Oxi) is the catalyst for UV/Oxidation by peroxide on the yellowed caps, freeing the layer of Bromine and bonding it to the oxygen available in the solution. This method works, and quite well.

However, if the detergents plus TAED in Oxi can do the job alone, this method might be preferable to those that are skittish about the mix that uses peroxide. I certainly am interested in the possibilty, even if the peroxide mix is more efficient.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sat, 16 July 2011, 02:04:59
I'm starting to think the OxyClean gets used up or reacted out the same as peroxide does. I even use my hands to stir the old barch  and there's no skin drying like when I first made it and just a few drops got on my hands. That leads me to believe that the solution is less effective with time and/or sun. I don't have a good idea about how much effect the sun has on the process. My next test will be  OxyClean at night, check color change in the morning. This test may happen in a week.

So far, reviewing everything after the fact, I've determined this:
1-using Oxy Clean at 10x recommended strength and sun, worked in one day 95% or better on a medium yellowed case.
2-using Oxy Clean at 16x recommended strength and inconsistent sun worked in one or two days 90% or better on medium and heavily yellowed keys. Pulled color from dark plastic which is not desirable. Keys were in jar and had to be shaken to rotate keys to get light exposure.
3-Oxy gets weak after a day or two either from time, usage, and/or sun.
4-I believe sun plays a big role, but not sure yet. Oxy works with laundry inside a washing machine. Pretty dark in there.
Title: Dang... peroxide DOES burn
Post by: REVENGE on Sat, 16 July 2011, 06:13:10
Quote from: input nirvana;381303
I'm starting to think the OxyClean gets used up or reacted out the same as peroxide does. I even use my hands to stir the old barch  and there's no skin drying like when I first made it and just a few drops got on my hands. That leads me to believe that the solution is less effective with time and/or sun. I don't have a good idea about how much effect the sun has on the process. My next test will be a tub of Oxy at night, check color change in the morning (after 10 hours) then put in sun that day and check color. This test may happen in a week.

So far, reviewing everything after the fact, I've determined this:
1-using Oxy Clean at 10x recommended strength and sun, worked in one day 95% or better on a medium yellowed case.
2-using Oxy Clean at 16x recommended strength and inconsistent sun worked in one or two days 90% or better on medium and heavily yellowed keys. Pulled color from dark plastic which is not desirable. Keys were in jar and had to be shaken to rotate keys to get light exposure.
3-Oxy gets weak after a day or two either from time, usage, and/or sun.
4-I believe sun plays a big role, but not sure yet. Oxy works with laundry inside a washing machine. Pretty dark in there.
I don't have access to a tub of OxyClean at the moment, so can you tell me what the ingredients are? I know for a fact that some denture tabs provide both the catalyst and release hydrogen peroxide once they dissolve in solution.
Title: Dang... peroxide DOES burn
Post by: The Solutor on Sat, 16 July 2011, 06:34:40
Quote from: REVENGE;381343
I don't have access to a tub of OxyClean at the moment, so can you tell me what the ingredients are? I know for a fact that some denture tabs provide both the catalyst and release hydrogen peroxide once they dissolve in solution.


http://geekhack.org/showthread.php?19644-Dang...-peroxide-DOES-burn/page2
Title: Dang... peroxide DOES burn
Post by: REVENGE on Sat, 16 July 2011, 07:23:35
Quote from: The Solutor;381348
http://geekhack.org/showthread.php?19644-Dang...-peroxide-DOES-burn/page2
Oh I see.
Title: Dang... peroxide DOES burn
Post by: alaricljs on Sat, 16 July 2011, 09:33:39
Hydrogen Peroxide decomposes into water and oxygen on it's own.  OxiClean is Sodium Percarbonate, which is Hydrogen Peroxide and Sodium Carbonate.

Kept dry OxiClean will be stable for a very long time. However no one stores it in glass jars so it is never kept dry.  If it's clumpy it is definitely not dry.  Water will decompose the Sodium Percarbonate into the component peroxide and Sodium Carbonate... and since peroxide decomposes into water and oxygen, it's a cascading reaction that destroys the entire batch of Oxiclean given enough time and an environment (like a basement) that doesn't encourage evaporation of the water.


Oh yeah, so what I didn't mention is YES, any hydrogen peroxide bearing solution will degrade over time, the warmer it is the faster it will happen.
Title: Dang... peroxide DOES burn
Post by: alaricljs on Sat, 16 July 2011, 09:49:57
Google IS where I got that info... but it would seem a lot of people are mistaken about what's in OxiClean since the MSDS says differently...
Title: Dang... peroxide DOES burn
Post by: The Solutor on Sat, 16 July 2011, 10:06:20
Quote from: ripster;381397
Oxyclean is chemically more complex than what The Solutor posted.

It's a catalyst.



Rtrobrite guys found something that works, or to say better, they imported something used since ages in the pc world, this doesn't mean they are chemicals, not they understood how it works.

Back to you,you should google a bit for "catalyst" to understand that hydrogen peroxide, Sodium perborate or it's environmental friendly cousin sodium percarbonate have nothing to do with catalysts, although minimal quantities some of them could be present in the oxyclean formula to improve its performances.
Title: Dang... peroxide DOES burn
Post by: The Solutor on Sat, 16 July 2011, 10:16:08
Quote from: ripster;381437
You spelled RetrObrite wrong.


If were just for retrobright I was more than happy.

Sooner or later I need to reach S.Francisco and have an English full immersion arguing endlessly with you :P
Title: Dang... peroxide DOES burn
Post by: The Solutor on Sat, 16 July 2011, 10:56:10
Quote from: ripster;381462
RetrObright isn't an English word.


If we want to split the hair, my mistake was not a spelling error but just a typo...
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sat, 16 July 2011, 10:59:32
I am using a generic brand of OxyClean (from Target) it does not have blue granules that Oxy Clean has in it, it's all white.
Title: Dang... peroxide DOES burn
Post by: Oqsy on Sat, 16 July 2011, 11:29:50
OxiClean's website has a FAQ. They say 6 hrs after mixing with water, then it is spent.
Title: Dang... peroxide DOES burn
Post by: litster on Sat, 16 July 2011, 11:40:29
Just as a reference, my can of oxyclean was very old (at least a few years, if not 10 years old).  It was chunky and stuck together as a solid block.  I think that means some water was mixed into it at some point.  I had to use a knife to stab the whole can of oxyclean loose in order to get it out.  It did work as my pictures showed.  But I had to use a lot of it.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sat, 16 July 2011, 12:14:55
So basically after the first several hours, I've been soaking the parts for 3 days in soapy water. Lol

**** that's funny.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sat, 16 July 2011, 12:21:11
Quote from: The Solutor;381439
Sooner or later I need to reach S.Francisco and have an English full immersion arguing endlessly with you :P

Come on down! I live next to the Defense Language Institute in Monterey. :)
Title: Dang... peroxide DOES burn
Post by: TexasFlood on Sat, 16 July 2011, 12:32:18
Quote from: Oqsy;381476
OxiClean's website has a FAQ. They say 6 hrs after mixing with water, then it is spent.

Quote from: input nirvana;381502
So basically after the first several hours, I've been soaking the parts for 3 days in soapy water. Lol

**** that's funny.
Hah.  Good to know, didn't even think to look there.  I've got some keyboards that could certainly benefit from this, Dell w/ pink alps and a Northgate come to mind.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sat, 16 July 2011, 13:26:38
Couple more questions:

1-Sun exposure, A) is it needed, or B) it just helps or C) has no effect?
2-Concentration (mix ratio with water) A) as directed or B) a higher concentration? At 16x the highest recommended mix, it sucked out some of the blue pigment in my blue keycaps.
Title: Dang... peroxide DOES burn
Post by: The Solutor on Sat, 16 July 2011, 16:00:58
Quote from: input nirvana;381507
Come on down! I live next to the Defense Language Institute in Monterey. :)


Defense against who ?

Me or Noodle256 ? :happy:
Title: Dang... peroxide DOES burn
Post by: The Solutor on Sat, 16 July 2011, 16:07:05
Quote from: input nirvana;381544
Couple more questions:

1-Sun exposure, A) is it needed, or B) it just helps or C) has no effect?


I'm not sure, likely sun has some effect on some fluorescent components added to the  Oxyclean formula, has happen in any laundry detergen, to made the white "more white"

But this requires the the sun when the work is finished, not during the process.
Title: Dang... peroxide DOES burn
Post by: The Solutor on Sat, 16 July 2011, 16:17:46
Quote from: ripster;381622
The Solutor.  I don't think you've been following the science here.


What part of "I'm not sure" and "likely" you missed ?

BTW is not with a generic chemical reaction that you can explain what happen here.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sat, 16 July 2011, 16:19:31
Use those lights for my aquarium set ups. Very expensive.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sat, 16 July 2011, 16:27:20
Quote from: ripster;381627
Wait, these guys might have been legit?

Every wonder why I know so much about nickel weights?

Seriously, when you get on a roll, it can be a great ride. Not dull.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sat, 16 July 2011, 16:42:46
Sun/UV is needed, direct and fairly strong (not foggy/overcast/early-late day).

Concentration minimums....I suppose is relative to the job at hand. I used 10x recommended for case in full sun with perfect results. I used 16x recommended for keycaps in jars in almost full sun, some keycaps obscured from full sunlight due to being bunched up in jar. Seems like sun was more important than the concentration, but then again, I didn't know exactly what I was doing at the time, or how it all worked together. My guess now is that a concentration of 10x OR LESS is adequate. (Hear that Stumpy...Litster...???) And this is without hydrogen peroxide. But, this is not a paste, which has a valuable use as well. I want to use paste on the bottom half of the cases so the 2 labels (one is paper, one is plastic) don't get damaged or removed.

I have 2 cases left to try. Maybe try one at the max recommended ratio first, and build up from there.
Title: Dang... peroxide DOES burn
Post by: The Solutor on Sat, 16 July 2011, 17:35:16
Quote from: ripster;381627
Experience Trumps Theory.


Often.

Btw I've never used sun when whitening something and it always worked as expected.

The inside of a washing machine is also known as a dark place.

And I'm still waiting for a theoretical explanation about the sunlight in this process.
Title: Dang... peroxide DOES burn
Post by: The Solutor on Sat, 16 July 2011, 17:51:13
Quote from: ripster;381658
Washing machine as an analogy?


What analogy?

Oxyclean is meant to work there, and no UV radiation is involved. Period.

Use the analogies when facts are lacking or vague, not when

Quote
Is those one of those Italian Logic things?


I'm more worried about good v.s. bad logic, more than Italian v.s. American.
Title: Dang... peroxide DOES burn
Post by: Oqsy on Sat, 16 July 2011, 21:41:15
I have no idea who is arguing what here anymore :P

I have a new tub of magic powder, and I plan on trying a no peroxide mix on the Northgate case. They really yellow up to a gross color, but nothing like Rips SGI or Apple.  I will see if I can replicate the results of the Contour case with 10x OxiClean and no peroxide with a few hours in the sun. Stay tuned...
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sat, 16 July 2011, 23:17:15
DO IT BRUTHA!!!!

To reiterate, I'm suspecting a lower concentration may be just as effective. I mention this:

1- to attempt to prevent possible damage to colored keys (like my blue keycaps)
2- for the pure facts of the matter
3- for economics

Remember, you can always treat again, or increase the concentration. Don't damage anything, you can't undo it. I did my Contour case at 10x max recommended which turns out to be 1 scoop per gallon.
Title: Dang... peroxide DOES burn
Post by: Oqsy on Sun, 17 July 2011, 07:35:17
Ah yes, 10x. Fixed.

Soak began at 8:30a CST.
4 scoops to 4 gallons (the only tub I had big enough was WAY too big, so I had to use extra water just to get the level above the top of the case, these could easily be soaked in 2 gallons or so in a "just right" sized container.
ZERO hydrogen peroxide added.
Sun is full, and is forecast to be that way all day today, with a high expected around 94F.

I will post back with more soon :D
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sun, 17 July 2011, 09:46:13
You maybe should give the mixture/cases a stir every now and again. I think most of my results were visibly working in the second hour as the sun came out from foggy skies.
Title: Dang... peroxide DOES burn
Post by: Oqsy on Sun, 17 July 2011, 10:11:45
Been stirring about every 20-30 mins.

I also took a rough sponge and gave the case a quick rub down in the oxi bath at about 1:30 into the soak (wearing gloves) in case I didn't do a thorough enough job cleaning it off before soaking.  This way I'm sure the Oxi can equally treat the surface, in case there was a grimy spot, etc. :D

I recommend everyone here get a set of PVC gloves that reach to your shoulders, and some nice goggles (the kind with holes are useless for this kind of work, need a true seal if you want to keep splashes out).  I use these gloves a lot more often than I'd expected when I bought them.  I'll see if I can find a link.

These are PVC, run about $12-$15, and work fine with the retrobrite solution with or without peroxie:
http://www.amazon.com/Aqua-Gloves-Pair-28/dp/B000255OEK (http://www.amazon.com/Aqua-Gloves-Pair-28/dp/B000255OEK)

These are Nitrile,[strike] so likely more delicate and harder to re-use[/strike] they appear to have a lining and should hold up well,t better chemical resistance and around $16:
http://www.labsafety.com/NORTH-Shoulder-Length-Nitrile-Gloves-Medium-1-Pair_s_121929M/Chemical-Protective-Gloves_24543574/?CID=9PP001&ci_src=14110944&ci_sku=121929M

These are Neoprene, so better chemical resistance, a bit more expensive somewhere in the $50-$60 range:
http://www.labsafety.com/Best-Shoulder-Length-Neoprene-Gloves_s_152484/Neoprene-Gloves_32245688/?CID=9PP001&ci_src=14110944&ci_sku=152484

These bad-asses are $400, and are really only worth it if you want to look super-creepy  like you might be stashing corpses in your basement:
http://www.calpaclab.com/products/Thermaprene_26_Chemical_Gloves_for_Acids_Alcohols_12_pair_Medium-10092-571.html
as you can see here, they're also good for shoving cotton candy into rusty industrial food processing devices..
(http://www.calpaclab.com/images/products/secondary/827.jpg)
Title: Dang... peroxide DOES burn
Post by: keyboardlover on Sun, 17 July 2011, 10:17:50
I'm surprised the OP got burned with peroxide and his first thought was "Dang...".
Title: Dang... peroxide DOES burn
Post by: The Solutor on Sun, 17 July 2011, 10:31:27
Quote from: Oqsy;381972


These bad-asses are $400, and are really only worth it if you want to look super-creepy  like you might be stashing corpses in your basement:

 
A 400$ pair of gloves are worth only if you plan to bleach a topre keyboard...:becky:
Title: Dang... peroxide DOES burn
Post by: Oqsy on Sun, 17 July 2011, 14:26:22
Ok, around 6 hours and the solution should be spent per the OxiClean FAQ.

The case is defintely lighter, but these Northgate cases seem to have a darker base color than many, so it's not "white" by any means. The before color was very close to matching the extra function row decal. Now its much lighter, and likely very similar to the factory shade. I'm curious if anyone knows what color Northgate cases were when new. All examples I've seen are quite yellow.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sun, 17 July 2011, 14:28:36
Google Images of your model and see what comes up.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sun, 17 July 2011, 14:50:04
Quote from: ripster;382109
Was it sunny?
(Attachment) 21190[/ATTACH]
[ATTACH=CONFIG]21195[/ATTACH]
Ba-Da-Br!
Title: Dang... peroxide DOES burn
Post by: Oqsy on Sun, 17 July 2011, 14:50:11
Ok, mine is *close* to that one.  The difference between that case and it's decals is about the same as mine.  My darker keys like modifiers, arrows, etc are definitely darker than the ones in that pic, but not any more yellow.  It just looks like they're from a different batch of key caps made from a different, and much darker plastic.
Title: Dang... peroxide DOES burn
Post by: Oqsy on Sun, 17 July 2011, 14:50:56
Ripster: re sunlight, http://geekhack.org/showthread.php?19644-Dang...-peroxide-DOES-burn&p=381927&viewfull=1#post381927
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sun, 17 July 2011, 15:00:24
Old Yeller is one issue, lightening/discoloring of the plastic is another issue. My lightened keycaps have NO yellow left.

I don't know if a keycap can become lightenend/discolored and still have yellow...but it seems possible. Caution.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sun, 17 July 2011, 15:17:25
Quote from: ripster;382135
Just turn the key or case over to see the original color.

I dunno. I did that to a girl once. I was NOT happy with what I found.
Title: Dang... peroxide DOES burn
Post by: Oqsy on Sun, 17 July 2011, 16:12:21
(http://i400.photobucket.com/albums/pp81/Oqsy/northgate_after.jpg?t=1310936873)
As per Ripster's suggested metric of "turning it over", it appears to be around 95% here, too.
The room I took these photos in was dark, and I didn't use flash for fear of glare and washing out the image, so this is only useful for comparison of top and bottom, not realistic representation of the shade of the case.  My photo "gear" consists of a digital P&S.  ISO of 200, no editing other than putting the two images together and resizing.  White balance, etc will be very off.  Indoor lighting from yellowy incandescent bulbs.

Bottom line, I'm satisfied with how it turned out, but a bit surprised at how dark the Northgate cases really are.  Also to note, the BEFORE color was similar to that decal strip with F1-F12 above the number row.  Improvement.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sun, 17 July 2011, 16:53:21
OQSY CASE STATUS: 95% or better...that case looks great! Yellow gone, that's the purpose, and it worked. It's a dated beige color, but not yellowed.

BEFORE AND AFTER PHOTOS: These are always cool, we all love 'em. But if you don't have a "studio" like Ripster does, it can be hard to show actual colors, and often even a relevant comparison between the two. I'm going to experiment with my Point and Shoot when I do the next case (in a week) so we can have an accurate wiki entry for "Oxy Only". Will need Ripsters advice with my available light sources.

WIKI INFO UPDATE: I guess we now know 10x recommended Oxy and water and sun does the trick. My next try will be with much less Oxy (5X?) to see how that will work.
Title: Dang... peroxide DOES burn
Post by: Oqsy on Mon, 18 July 2011, 00:20:35
Yay I won the thread!
This info really should be parsed and placed somewhere besides a peroxide burn thread. Illster, InputNirvana, you interested in joining me in a Wiki three-way?

:P

Seriously, this info is useful, interesting, and was fun to test!
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Mon, 18 July 2011, 00:55:37
No offense, you and Litster seem like real nice guys and all, but I have a hard enough time fighting off all the love-offerings here in San Francisco. Plus, Litster is gonna kick my butt if I don't get the Cherry reds soon like I promised. :)

Should it be a separate header in the Retrobrite wiki as a full-submersion option or???....Ripster, would that be correct?

For a formal wiki, there needs to have complete & quality before/after photos, which I think I may be able to add with what we have so far.
I have this to whiten:
-1 set of keycaps
-2 case tops
-3 case bottoms that I don't want to submerge due to paper labels (maybe Retrobrite these)

I would have done this a year ago if I had known I could have done it this way. I'm sure that might be true for others as well.

I need at least a week before I can do anything. Gotta order the Cherry reds first!!!!
Title: Dang... peroxide DOES burn
Post by: litster on Mon, 18 July 2011, 02:41:08
input, I am glad that you finally have your priority straight!  LOL!  

As for wiki, I will do whatever you guys want.  I like 3-way!  I kind of have before and after pictures.  But the before picture was taken with an iphone and the quality is not very good.  But for demostration purposes, it does serve the purpose.
Title: Dang... peroxide DOES burn
Post by: The Solutor on Mon, 18 July 2011, 03:05:14
Quote from: input nirvana;382173


WIKI INFO UPDATE: I guess we now know 10x recommended Oxy and water and sun does the trick. My next try will be with much less Oxy (5X?) to see how that will work.

 
As you applied part of my suggestion (and it worked), why not test it completely and add the ammonia in to the game ?
Title: Dang... peroxide DOES burn
Post by: Oqsy on Mon, 18 July 2011, 21:10:28
I won't be putting ammonia in any of my mixes. I'm not brave enough to experiment with ADDING ingredients. Btw, didn't you suggest mixing bleach and ammonia earlier in the thread?  Bad idea.
Title: Dang... peroxide DOES burn
Post by: The Solutor on Mon, 18 July 2011, 21:32:28
Quote
Btw, didn't you suggest mixing bleach and ammonia earlier in the thread? Bad idea


No I didn't

Quote
I won't be putting ammonia in any of my mixes. I'm not brave enough to experiment with ADDING ingredients.


This is not an experiment, I'm not used to give random suggestion nor to use people as guinea pigs, this is a well known mix (I mean 50% ammonia/50% hydrogen peroxide) by any antique furniture restorer that, for the record, was my work for almost an year, when I was younger.

Just don't drink it and use it in an open environment.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Mon, 18 July 2011, 21:46:57
I'm fairly certain the case I did is effectively 100% (95+% because I figure maybe it isn't and I just can't tell). The keys aren't quite perfect because I couldn't get the sun exposure correct in a jar. I want to make it less toxic, cheaper, easier, yet effective. So far, that seems to be what we three have done...I'm good with that. The only goal now (I think) is to see how little Oxy strength can be used without losing the effectiveness. My next batch will use HALF what we've previously used.There is another aspect we have not touched on, it's regarding the QUANTITY of solution. I did 1 set of keys in 20oz, another set in 32oz. I don't know how solution is actually used, but I think only a very, very small amount is needed (a couple ounces) for what we are doing...so what does that mean? Discuss.
Title: Dang... peroxide DOES burn
Post by: Oqsy on Mon, 18 July 2011, 21:51:31
That means we need custom trays for placing caps(like an ice tray) and/or cases to submerge in as little volume possible. Using smaller volumes means evaporation becomes an issue to consider, so something with a clear top.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Tue, 19 July 2011, 00:08:00
All the various processes have merit, Maybe some are better, faster, cheaper, more effective, easier....like the endless pursuit of dongle nirvana (what else BESIDES the Blue Cube???) Necessity is the mother of invention. There are some overly-detail-oriented-OCD-geeky-nerds here :)

My initial thought was to explore if there was 1)a simpler/easier and 2)less toxic method that is still 3)reasonably effective. Two extra benefits are that it turns out to be 4)cheaper and 5) a common household item available everywhere.

I'm very satisfied with the results, But since I have several more items to de-yellow, I might as well fine tune some of the info (how little of a concentration is needed?).

The Retrobrite paste is crucial if you don't want to submerge the item. I have 4 keyboard cases that have a paper label on the back I don't want to destroy. So I can't get away from going the Full-Monty at some point. No pics.

Also, after we cut all the fat from this thread, it boils down to a short paragraph, with a couple mix ratios and cautions, not a separate wiki article.
Title: Dang... peroxide DOES burn
Post by: litster on Tue, 19 July 2011, 00:13:53
The Dolch keyboard that I received today has white letters and they have become yellow.  I ran out of yellow things to Retr0brite.  Now I need to buy more OxyClean.

Billy is dead.  Long live Billy!
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Tue, 19 July 2011, 00:30:56
I could see yellow on the blue and the white on the blue keycaps with white letters.

Do you see yellow on the keycap itself, not just the white legend? What color is the key?

Billy is dead....long live Billy??....put down the bottle before you type something you regret :)
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Tue, 19 July 2011, 01:42:21
FYI---update on mix ratios used

I bought a generic (not OxyClean name brand) oxygen booster at Target. 6 pounds for $7.50. OxyClean was $9.50 for the same 6 pounds. No biggie.

Now I'm comparing the suggested mix ratios between the generic and OxyClean for the same tasks. There is a HUGE difference. First, a SCOOP of OxyClean is 1/2 cup (8 tablespoons). A SCOOP of the generic I've been using is only 2 tablespoons. So using "scoop" as a form of measurement between the 2 different oxy boosters is not consistent. Secondly, the physical amounts, after I converted to standard units of measure is surprising. According to the two labels for the same tasks, require a very different mix ratio. The OxyClean requires from a low of 2x more to a high of 8x more volume of product in the mix for the SAME specified tasks.

Either the generic has much more active ingredient/less filler, or the mixing directions are very very imprecise, or---?

EDITED POST---
So if you used my mix ratio which was 10x stronger than the generic recommended, you were using the WEAKEST OxyClean solution.
Title: Dang... peroxide DOES burn
Post by: Oqsy on Tue, 19 July 2011, 06:41:44
Yay I overkilled again!
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Tue, 19 July 2011, 09:05:10
Quote from: Oqsy;383260
Yay I overkilled again!


No you didn't. I made a correction to that post (late nite posting math incorrect, I posted volumes). I got the strength of booster backwards.

OxyClean recommends 2 scoops for a gallon (max strength), you only used 1 scoop, which is only HALF their maximum recommended (which is their weakest strength). Your mix was the weakest category of anything OxyClean recommends. My generic mix was 10x the maximum what the generic recommends. Most likely I'm the one that overkilled. My next batch will be equivalent to yours, if it works the same, I'll do another at an even lesser strength.

EDIT--Oxy-Clean: 1/2 cup per gallon=weakest solution. 1 cup per gallon=Max strength solution.

Maybe that's why my dark keys got lightened?
Title: Dang... peroxide DOES burn
Post by: alaricljs on Tue, 19 July 2011, 09:46:16
Hydrogen Peroxide... decomposes to water and oxygen, pretty damned safe as long as you don't get any of the liquid on you.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Tue, 19 July 2011, 09:50:58
OxyClean laundry or generic equal.

Get it on you, no problem. Lots cheaper than hydrogen peroxide and available everywhere (about .10 cents for a gallon of mixed solution). We have just accidentally figured out it can be used at the recommended household strengths, if not even less, and that it cleans yellow keyboards easily.
Title: Dang... peroxide DOES burn
Post by: Oqsy on Tue, 19 July 2011, 12:13:30
Plain peroxide soak was the origin of retr0bright, and Oxi was added to speed up the process. We're finding that Oxi alone seems to work as well. Peroxide often suggested for retr0bright is the beautician stuff, higher concentration, and more caustic. Oxi is used as a laundry additive, and while playing in it isn't smart, it should be MUCH safer to handle than peroxide. All of this is of course dependent on concentrations.
Title: Dang... peroxide DOES burn
Post by: litster on Tue, 19 July 2011, 12:49:15
Quote from: dante;383323
So its just a matter of dumping keycaps, keyboard exterior in a bucket of peroxide and leaving it out in the sun until done?

It sounds much better/safer than the other method!

OxyClean alone + water under the sun has proven to work.  The unknown is if OxyClean works without being under the Sun, and what is the minimum mix ratio.  A professional chemist would be able to tell us.  But we are just techies, so we experiment.  If you don't care to know the most cost effective mix ratio, just use more than you think you need, put it under the sun, and be done with it.  :)
Title: Dang... peroxide DOES burn
Post by: Oqsy on Tue, 19 July 2011, 23:03:22
litster: sorry, I've been butchering your name, my bad eyes really have trouble with lower case letter "i" and lowercase letter "l".  

Also InputNirvana, did you mention that you  have multiple Kinesis boards and are considering selling?  I'd be interested if the price is within my budget, perhaps we can talk in PM if you have any up for grabs.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Tue, 19 July 2011, 23:12:20
Nah, let's pollute the forum with our backroom dealings....

You know the price triples after they get the Oqsy-Oxy bath?  :)
Title: Dang... peroxide DOES burn
Post by: litster on Tue, 19 July 2011, 23:18:32
Oqsy, no problem.  At least you didn't call me lister!  LOL!  *wink*
Title: Dang... peroxide DOES burn
Post by: Oqsy on Wed, 20 July 2011, 00:26:52
InputNirvana: I'm hoping I can catch you on a bad math day when you think you're charging me triple, but only charge me 1/3.
:P
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Wed, 20 July 2011, 00:45:14
Dude, that was YESTERDAY...lol
Title: Dang... peroxide DOES burn
Post by: kaiserreich on Thu, 21 July 2011, 21:48:39
Quote from: litster;383390
OxyClean alone + water under the sun has proven to work.  The unknown is if OxyClean works without being under the Sun, and what is the minimum mix ratio.  A professional chemist would be able to tell us.  But we are just techies, so we experiment.  If you don't care to know the most cost effective mix ratio, just use more than you think you need, put it under the sun, and be done with it.  :)


I have a bottle of developer with 12% H2O2, since it was thick and paste like, I used it straight from the bottle.

Where I live, we get almost 12 hours of sunlight everyday. The solution dried out and it didn't really work well, took me 3 days to realize what went wrong. The next step I attempted was to put it in the shade, applied the developer generously and made sure it did not dry out. That worked better, but i only did it for da day. 7 hours in the shade in with equator sun and my case still have a slight yellow hue to it.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Thu, 21 July 2011, 22:01:18
Are you going to try it again?
Title: Dang... peroxide DOES burn
Post by: kaiserreich on Fri, 22 July 2011, 00:27:43
Quote from: input nirvana;385090
Are you going to try it again?

Next weekend hopefully.
Plus I'm a getting a shipment of yellow and dirty keyboards coming my way
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Fri, 22 July 2011, 01:15:15
Yaaayyy! A shipment of old keyboards!!!!!!  :)  

Anything interesting?
Title: Dang... peroxide DOES burn
Post by: kaiserreich on Fri, 22 July 2011, 01:32:25
Quote from: input nirvana;385161
Yaaayyy! A shipment of old keyboards!!!!!!  :)  

Anything interesting?

Posted at 'It's in the mail'. Help me answer some questions if you can :)
Title: Dang... peroxide DOES burn
Post by: litster on Sun, 24 July 2011, 23:23:29
Did more experiment today.  I have a set of Dolch keycaps with yellow white letters.  Bought a new can of OxyClean from Target.  Used 2 scoops OxyClean in about 8 Oz of water.  

ScrollLock and letter G before OxyClean.  NumLock and 8 are controls.
(http://geekhack.org/attachment.php?attachmentid=22187&d=1311567276)

Numpad * and numpad 3 before OxyClean.  NumLock and 8 are controls.
(http://geekhack.org/attachment.php?attachmentid=22188&d=1311567277)

After 5 hours of direct sun in OxyClean solution.  ScrollLock and letter G were in OxyClean *under* the sun for 5 hours.  Numpad * and numpad 3 after 5 hours indoor (no sun) in OxyClean solution.  
(http://geekhack.org/attachment.php?attachmentid=22186&d=1311567276)

It is not dramatic, but you can see ScrollLock and the letter G getting whiter.  Numpad * and Numpad 3, although in the same OxyClean solution but without sun, didn't not get whiter.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Sun, 24 July 2011, 23:32:57
A-ha!
[ATTACH=CONFIG]22189[/ATTACH]

[/SIZE][/COLOR]What happened to just using the recommended amount that oqsy tried?

I notice your dark keys did not get whitened like mine did (lucky you or maybe a function of the type of plastic).

Is this what you used, the 6 pound container of Oxy-Clean?
[ATTACH=CONFIG]22191[/ATTACH] [ATTACH=CONFIG]22190[/ATTACH]
2 scoops=1 cup. 1 scoop= 1/2 cup per gallon recommended (weakest).

My whitened keys are a mystery until I do others (of the same key) at a much lower concentration than 10x like I did before.
Title: Dang... peroxide DOES burn
Post by: litster on Mon, 25 July 2011, 00:00:23
The pre-soak formula outside the OxyClean can says 1 scoop to 16 oz.  I did 2 scoops to 8 oz.  That is 4x the recommended ratio for pre-soak.  Forecast is rainy tomorrow and the next few days.  Next time we have a sunny day, should be Thursday, I will use new solution (same ratio) to continue the whitening process.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Mon, 25 July 2011, 00:06:30
This whole "scoop" measuring is a problem. Different size scoops. I'm guessing you bought a smaller container than 6 pounds?


The 6 pound Oxy-Clean has these directions:
1/4 scoop (2 tablespoons) for 16oz for pre-treat.
[ATTACH=CONFIG]22192[/ATTACH]

Also--Nice pics of the keys!
Title: Dang... peroxide DOES burn
Post by: litster on Mon, 25 July 2011, 00:12:18
This is what is on my can of OxyClean, and the size of the scoop that comes with my small can.

(http://geekhack.org/attachment.php?attachmentid=22197&d=1311571119)

(http://geekhack.org/attachment.php?attachmentid=22198&d=1311571120)
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Mon, 25 July 2011, 00:20:56
The "scoop-conspiracy" has been solved!

Looks like we have a typical case of "scoop-envy". Your scoop ain't no 1/2 cup!

The upper right side of the graphic directions say 1 scoop=? (what is that measurement?)
Title: Dang... peroxide DOES burn
Post by: litster on Mon, 25 July 2011, 00:23:39
1 scoop == 2 tbsp

And I made a mistake.  it should be pre-treat, not pre-soak.
Title: Dang... peroxide DOES burn
Post by: Oqsy on Mon, 25 July 2011, 00:28:36
For the record I have the six lb tub and 1/2 cup scoop.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Mon, 25 July 2011, 00:36:21
Ok, this is what I am coming up with:

First, let's convert scoops to actual unit measurements. Litster scoop=2 tablespoons, Oqsy scoop=the 6 pound tub scoop 1/2 cup=8 tablespoons. Litsters pre-treat directions state 1 scoop=2 tablespoons. Oqsy 6 pound tub pre-treat state 1/4 scoop=2 tablespoons. That translates to the same mix at 1 cup per gallon, so that checks out, the same stuff, same strength.

-- Oxy Clean mixes range from 1/2 cup per gallon (weakest) to 1 cup per gallon (strongest) --

Litster used *2 scoops* (4 tablespoons in 8oz water=4 cups per 1 gallon). 4x the recommended MAX strength.

Oqsy used *4 scoops* (2 cups in 4 gallons=1/2 cup per 1 gallon). The recommended weakest mix ratio for Oxy Clean. 1x the weakest mix seems to work!

So we now know:
No sun=No deal
1x and 4x strengths do the job (maybe less will do it also)

THE BOTTOM LINE:
Recommended mix of the name brand "Oxy Clean" and water in sunlight for the first 6 hours or less gets rid of that yellow piss look. No caustic chemicals/mixing/equipment needed, it's the cheapest (costs pennies per gallon), least dangerous (it's a household fabric-safe cleaner), available everywhere, easiest (powder, water, container, sun), and over-dosing many times over doesn't seem to cause any problems/damage.

Share if you have experiences. Try to convert to standard units of measure to avoid some of the run around earlier in the thread (no more pooper-scooper). We still don't know the actual amount of solution needed, it seems much less than required to submerge the parts, so that's a moot issue. The various types of plastics may be affected differently as I had some keys that were considerably lightened.

I think we are at the point of confirming with a few more of these projects, that the 1/2 to 1 cup per gallon Oxy Clean mix in the sun is adequate to eliminate the yellow. Photos are always welcome.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Mon, 25 July 2011, 11:02:32
Maybe I'm not seeing it. The SCROLL ant G keys look like the underside of the top key to me.
Title: Dang... peroxide DOES burn
Post by: litster on Mon, 25 July 2011, 12:12:39
Quote from: ripster;386810
So what kind of scientific experiment is this if you guys don't do control samples with the original RetrObrite formula?

I think we already know both methods work.  They are both effective.  One is paste form, one is liquid form.  Different options for different applications.
Title: Dang... peroxide DOES burn
Post by: The Solutor on Mon, 25 July 2011, 12:31:58
Quote from: litster;386815
One is paste form, one is liquid form.  Different options for different applications.


BTW, here Oxy clean is almost unknown, Vanish Oxi Action is a well known similar product, and it's available also in gel form (http://www.vanish.co.uk/vanish-oxi-action-power-gel.php), good to clean parts that can't be submerged.

I presume that also Oxy clean has a similar product in its line.
Title: Dang... peroxide DOES burn
Post by: Oqsy on Mon, 25 July 2011, 12:54:07
Quote from: ripster;386810
So what kind of scientific experiment is this if you guys don't do control samples with the original RetrObrite formula?

So likeable. I have no idea where Ripster-haters get their kooky ideas...
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Mon, 25 July 2011, 13:10:58
Quote from: ripster;386810
So what kind of scientific experiment is this if you guys don't do control samples with the original RetrObrite formula?

Hey, this ain't no science experiment...we're just doing laundry :)

2 good Ripster points:
1) I need to make Retrobrite paste for 2 case bottoms I can't submerge (due to paper labels). So I'm waiting to Oxy the rest until I can make that comparison with Retrobrite at the same time. Might as well make it into a science experiment to satisfy the skeptics.

2) Taking accurate pics is a big part of the documentation process. I'll be much more diligent with photos, and no more shoddy cellphone pics.

I'm not absolutely positive Oxy alone is quite as good as Retrobrite (yet), but at this point it's definitely safe to say several of us have achieved 95% or better with Oxy mixes ranging from the weakest recommended to about 5x the strongest recommended. A few more keyboards, keys, people, plastics, degrees of yellow, and locations should give a more accurate sampling of what can be reasonably achieved.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Mon, 25 July 2011, 14:27:04
The original Retrobrite article:
http://geekhack.org/showwiki.php?title=Island:9099
 (http://geekhack.org/showwiki.php?title=Island:9099)
False_Dmitry_II (moved his post to a wiki), who I talked with before we started the Oxy Clean only process:
http://geekhack.org/showwiki.php?title=Island:20283

(http://geekhack.org/showwiki.php?title=Island:20283)
Quote from: ripster;386885
Also not sure it's any cheaper. The Hydrogen Peroxide gel hair stuff I used was $3 a 500ml bottle and people report good results just painting it on with a brush and putting out in bright light or better under a CFL so it won't dry out. For lots of keys the paste would be a PITA.
[/FONT]
[/URL]Brush on a gel hydrogen peroxide? That sounds pretty good, I missed those posts, I'll go read them. That sounds like it would still be overall easier, cheap, and less caustic than the Full-Monty Retrobrite method.
Title: Dang... peroxide DOES burn
Post by: kaiserreich on Tue, 26 July 2011, 04:10:34
So, liquid for keys, paste for cases.

Gonna get some Vanish oxi clean to put with my 12% Developer and see magic
(http://i.imgur.com/Hlf9W.jpg)
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Tue, 26 July 2011, 11:33:46
Quote from: kaiserreich;387327
So, liquid for keys, paste for cases.

Gonna get some Vanish oxi clean to put with my 12% Developer and see magic
Show Image
(http://i.imgur.com/Hlf9W.jpg)

Look at that thing! It appears it's been chain smoking for about 15 years non-stop.

This would be a great BEFORE/AFTER project to show.
Title: Dang... peroxide DOES burn
Post by: Oqsy on Tue, 26 July 2011, 15:23:16
Quote from: ripster;387515
A lot of work for a Fujitsu Peerless.

Again, helpful and kind. I love your new positive outlook.
Title: Dang... peroxide DOES burn
Post by: kaiserreich on Tue, 26 July 2011, 18:58:01
Just doing it for the lulz

A before and after picture, the best I've ever seen was on that C64 at the Retr0bright website

edit:

http://www.classic-computers.org.nz/blog/2009-03-22-deyellowing-paste-trial-on-c64.htm

now I know what the dried solution did to my case
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Thu, 04 August 2011, 00:54:38
What's the story? The developer gel dried?
Title: Dang... peroxide DOES burn
Post by: kaiserreich on Thu, 04 August 2011, 01:20:48
Yes, the gel dried out in the hot sun. Thus I have white spots over my beige keyboard
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Thu, 04 August 2011, 01:27:38
Are you going to try to whiten it again to even it out a bit?
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Thu, 04 August 2011, 01:35:51
Here is a link, can't read a single word. It appears he is (oxyclean???) his Kinesis Conoured indoors, I think with 160 degree water, need confirmation of that.

If you click the thumbnails about a dozen pics to the right you can see part of the process. Go another 10 pics and you can see a cool all black reclining (gaming?) computing setup he's got. From the original starting point of the link, if you go about 10 pics to the left, he has a super-rad office chair. I've seen before, but don't remember what it is. It's very notable, I think it's about $1,000+

http://ameblo.jp/martin777/image-10719620844-10883991805.html
Title: Dang... peroxide DOES burn
Post by: Oqsy on Fri, 05 August 2011, 17:40:42
Whats with the close up of the diarrhea in the bathtub?  Oh...  .jp

Nevermind.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Wed, 10 August 2011, 22:49:03
I may have something interesting to report. The Kinesis white case top I oxy-cleaned seems to be slightly yellow exactly where my hands rest on the case. EXACTLY. I need to look at it again closely tomorrow under different light. If it is real, I'll oxy it again and see if there is a difference. I find it hard to believe it was there the whole time after I did the oxy, but maybe it was. I doubt I can take picture of it, it's slight.

Interesting, huh?
Title: Dang... peroxide DOES burn
Post by: Oqsy on Thu, 11 August 2011, 19:43:31
GASP!

But this is inconsistent with what we are trying to trick people into believing!
Title: Dang... peroxide DOES burn
Post by: Oqsy on Thu, 11 August 2011, 19:45:10
I told you to use the inaccurate model from England that predicts the results we want instead of the truth!
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Fri, 12 August 2011, 01:16:38
Oqsy-Truth?
Title: Dang... peroxide DOES burn
Post by: Oqsy on Fri, 12 August 2011, 02:50:05
Sorry, very specific reference to something that's probably not very funny anyway... nevermind :/
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Fri, 12 August 2011, 10:49:46
In a week (when I'm home again), I'll get the gel hydrogen peroxide so I'll be prepared for when the sun shines again. I live on a peninsula, I can see sun 2 miles away, but generally live under a fog bank. So hopefully in a month I will do this comparison:
-gel
-1x oxy (confident doing many times stronger is sorta pointless)
-gel with a little oxy added
-probably retrobrite for comparison

With before/after pics (light keys and a few dark keys) and a control. Doing all that, will eat up 6 hours easy. This will be my definitive comparison, after this, I will settle on just one way. If I can do it properly, this should be the linkable linky-link for a somewhat reasonable comparison for people to consider and evaluate. Keyboard pseudo-science at it's best.

I'm curious about that link I posted that shows someone doing the whitening indoors....wish I knew what was going on there.
Title: Dang... peroxide DOES burn
Post by: Oqsy on Fri, 12 August 2011, 11:57:12
Japanese scat. Nothing to see there.
Title: Dang... peroxide DOES burn
Post by: litster on Fri, 12 August 2011, 16:13:08
The best ramen I have had IMO is Ramen Santouka.  I have been to the one in Costa Mesa, CA and Vancouver, BC.  The "salt"  flavor is the best. 4 to 4.5 starts on yelp.
Title: Dang... peroxide DOES burn
Post by: enoy21 on Mon, 17 October 2011, 13:12:34
Damn this was alot to skim through. So as a final verdict.....


For key caps the safest most cost effective method is:

Oxyclean 2x recommended strength for pre-treat option on label
Glass or thick plastic container
Sun

Let caps soak for 6 hours in the sun , Rinse/Repeat as necessary ?

Since the sun seems to have been proven to make a difference , It's recommended to get a flat container so they all get direct sun access or is it really the HEAT ( Like that from a washing machine ) that activates the product ? Otherwise I would think a jar would be a bad option due to direct sun access.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Thu, 20 October 2011, 11:03:29
Yes, this thread is quite unnecessarily long, (I'm a big factor in this) since there was a lot of 'thread thinking' rather than just 'thread posting'. Of course, a bunch of other nerdies got pretty excited and contributed equally :)

Primarily, the meat of the thread is that Oxy at a regular, on-label ratio works by itself, in the sun. Heat is not a needed item, but it may affect the speed.

Secondarily, there are several methods to use, like Dentue-Tabs, hydrogen peroxide gel (which is also cheap), or the actual Retrobrite recipe. They all seem to work about the same.

NOTE: The only real caution is the potential 'mottling effect' if you let gel dry on the plastic. Also a couple of use 'lightened' darker plastics with WAY TOO STRONG mixes.

What we have more or less determined, is that there are several relatively 'safe' ways to lighten yellow plastics, that are cheap and easy. Don't make it too technical, complicated or waste a lot of time on it. Read what we have done for info and see how we got here, but don't reinvent the wheel. There is no gain. :)
Title: Dang... peroxide DOES burn
Post by: enoy21 on Thu, 20 October 2011, 11:08:40
Yeah , I think I went too strong and at some point had some mixture left on a couple of darker keys, they are now a faded off color. :(    The 37 main keys mixture might have been a bit strong as well because the lettering is faded somewhat on the top , but the inside coloring is still a dark rich blue.

They still have a bit of a yellow color on the keys though. The bottom edge of the key and the bottom of the space bar look like they should be a light grey with no yellowing at all.  Strange.
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Thu, 20 October 2011, 11:26:08
It's not an exact science, but probably the worst is over-strength for too long, or letting gel dry.

No reason to go too strong, the stuff is so cheap there is no monetary loss. Impatience is a big factor I've noticed :)
Title: Dang... peroxide DOES burn
Post by: spikeh on Mon, 13 February 2012, 00:11:25
I'm so glad I found this thread, especially the information on Dolch keycaps from litster. I got hold of some rare ISO UK Cherry doubleshots in China, but unfortunately I think the poor board has spent its time in a net cafe and the white lettering is all yellow! The side lettering (Sys Rq and Break) on Prt Sc and Pause keys are lovely and white. Thinking that I will never get another chance to acquire ISO UK doubleshots for my Filco, I'm going to try the Oxy method detailed here instead of returning the keyboard.

I only have one question I have that I couldn't find in this thread (sorry if I missed it; I did skim it... so it may be buried somewhere). Is direct sunlight on top of the container required? The Shanghainese sky is pretty overcast during the winter. Would placing it outside during the day be sufficient, or would I need to wait for the warmer months to arrive first? Could I substitute with a UV/CFL lamp?
Title: Dang... peroxide DOES burn
Post by: Input Nirvana on Mon, 13 February 2012, 01:03:56
UV is a factor. You can try it outside, UV comes right through light clouds unless they are pretty thick, wet, rainy. If it doesn't work you lose nothing. Then you can try with different lighting. If you use the oxy, it is active for about 6 hours, after that it's depleted. Unless it's easier to try it inside, then go for that.

Take pictures to compare and show us!
Title: Dang... peroxide DOES burn
Post by: jellowiggler on Sun, 11 March 2012, 08:55:34
I Oxycleaned some wyse keys for 3 sessions of 6-8 hours, stirring every hour or so, outdoors.

Little to no effect. Will try 3% peroxide mix with an oxyclean kicker next.

Maybe it was the temp?  10-15C.  I started with warm water, but within the first hour it had cooled to air temp.
Title: Dang... peroxide DOES burn
Post by: litster on Sun, 11 March 2012, 12:01:01
how much oxyclean did you put into the water?  When I did it, I put *a lot* of it with very little water, very concentrated.  And the keys must be fully submerged in the water, not just floating around on the water surface.
Title: Dang... peroxide DOES burn
Post by: jellowiggler on Tue, 13 March 2012, 01:36:01
I tried 1 cup in about 650ml. The second time I tried a 1/2 cup in the same. Then the third time I did the same again, but about 500ml water.  Each time was 6-7 hours.

Today I tried a 3% peroxide bath with 2 heaping teaspoons of oxiclean for 6 hours. Some keys are still yellowed compared to others.  Bah!

Maybe the temp is throwing it off, or the uv level isn't high enough. I'm not sure.
Title: Dang... peroxide DOES burn
Post by: Surly73 on Thu, 15 March 2012, 06:36:03
I have removed a set of WYSE caps from a terminal board and it has moderately but noticeable yellowing (24x7 fluorescent tube exposure for ~15 years).  These keys are at the office so I'm first going to see what I can do at the office instead of lugging bags of caps around on my commute.  They've been in a 3% peroxide solution (all I could get in the area of my office) for about 24 hours and I don't believe anything really has happened.  Time to kick it up a notch.  Maybe I'll move to an Oxy solution instead.