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geekhack Community => Keyboards => Topic started by: Mur on Wed, 21 July 2010, 04:28:05

Title: Isopropyl alcohol and FKBN104M/EB
Post by: Mur on Wed, 21 July 2010, 04:28:05
Hey there. There was a small mishap with my Filco FKBN104M/EB on the way home from a trip. It was in a bag with a little squirt bottle of rubbing alcohol and a bit of it leaked onto the top right hand corner of the keyboard. The end result is some discoloration around that area and a very discolored forward-slash numpad key. It seems that a coating has been removed or the finish has been striped.

From your experiences with Filco and similar plastics is there anyway to reverse this?

Thank you.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: lmnop on Wed, 21 July 2010, 06:03:39
no.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: lmnop on Wed, 21 July 2010, 06:08:42
no. isopropyl is a solvent and Costar doesn't use the highest quality plastics.

(http://1.bp.blogspot.com/_GlbZqUcKi6M/S_14VDZt3YI/AAAAAAAAAQE/hrWE2fNFznA/s1600/bad_hair_cut.jpg)
Title: Isopropyl alcohol and FKBN104M/EB
Post by: majestouch on Wed, 21 July 2010, 11:26:55
Mur, the coating used on some Majestouch FILCOs is sensitive to isopropyl and Diatec has been alerted to this. This is not a plastic problem and Costar doesn't make keycaps (obvioustrollisobvious...).

Where did you purchase this board from? I may be able to source individual keys for you if you send an e-mail to support@elitekeyboards.com.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: itlnstln on Wed, 21 July 2010, 11:31:18
Quote from: majestouch;204823
This is not a plastic problem and Costar doesn't make keycaps (obvioustrollisobvious...).


Costar outsources keycap production. Interesting.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: majestouch on Wed, 21 July 2010, 11:39:55
Quote from: itlnstln;204825
Costar outsources keycap production. Interesting.


This shouldn't come as a surprise; keycaps are a specialty, you'd advertise such an ability if you had it.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: lmnop on Wed, 21 July 2010, 11:50:23
Quote from: majestouch;204823
Mur, the coating used on some Majestouch FILCOs is sensitive to isopropyl and Diatec has been alerted to this. This is not a plastic problem and Costar doesn't make keycaps (obvioustrollisobvious...).

Where did you purchase this board from? I may be able to source individual keys for you if you send an e-mail to support@elitekeyboards.com.


if you really want to save face why don't you send him a face plate from a dead Filco.

it's well documented what happens to Polystyrene, PVC and other inexpensive plastics when exposed to solvents.

I am well aware Costar didn't manufacture the keycaps. the finish on the Filco Majestouch keycaps is vulnerable to everything including ph levels, acids and oils remember? :)
Title: Isopropyl alcohol and FKBN104M/EB
Post by: lmnop on Wed, 21 July 2010, 11:53:15
Quote from: majestouch;204823
Mur, the coating used on some Majestouch FILCOs is sensitive to isopropyl and Diatec has been alerted to this. This is not a plastic problem and Costar doesn't make keycaps (obvioustrollisobvious...).

Where did you purchase this board from? I may be able to source individual keys for you if you send an e-mail to support@elitekeyboards.com.

if you really want to save face why don't you send him a face plate from a dead Filco.

it's well documented what happens to Polystyrene, PVC and other inexpensive plastics when exposed to solvents.

I am well aware Costar didn't manufacture the keycaps. the finish on the Filco Majestouch keycaps is vulnerable to everything including ph levels, acids and oils remember? :)
Title: Isopropyl alcohol and FKBN104M/EB
Post by: majestouch on Wed, 21 July 2010, 11:54:30
Quote from: lmnop;204835
if you really want to save face why don't you send him a face plate from a dead Filco.

it's well documented what happens to Polystyrene, PVC and other inexpensive plastics when exposed to solvents.

I have already argued with you about the Keycaps you obviously don't remember.


What are your qualifications and references; specifically with Isopropyl?
Title: Isopropyl alcohol and FKBN104M/EB
Post by: lmnop on Wed, 21 July 2010, 12:08:37
Quote from: majestouch;204840
What are your qualifications and references; specifically with Isopropyl?


Google is a good qualification.

are you serious? that is your rebuttal?
Title: Isopropyl alcohol and FKBN104M/EB
Post by: majestouch on Wed, 21 July 2010, 12:25:23
Quote from: lmnop;204844
Google is a good qualification.

are you serious? that is your rebuttal?

This isn't 4chan; your blatant disrespect to me here will not evanesce into anonymity.

You pronounced your belief. The burden of proof is your's. References please.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: hyperlinked on Wed, 21 July 2010, 12:39:45
Quote from: lmnop;204844
Google is a good qualification.


Ugh. There have been too many times that I've seen someone use the Google defense in an argument on this site. There's so much wrong information out there and Google makes is very easy to find it.  

I'm not saying you're wrong, but you can't just say "Google it" and leave it at that.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: ch_123 on Wed, 21 July 2010, 12:52:03
The thing about Google is that you need to know what you are looking for :P
Title: Isopropyl alcohol and FKBN104M/EB
Post by: msiegel on Wed, 21 July 2010, 12:52:49
Quote from: Mur;204784
a little squirt bottle of rubbing alcohol and a bit of it leaked onto the top right hand corner of the keyboard.


how long was it in there?

i've had an uncoated alt key from a Zero sitting in a mm of 91% isopropyl for the last 10 minutes and nothing has happened so far...
Title: Isopropyl alcohol and FKBN104M/EB
Post by: didjamatic on Wed, 21 July 2010, 12:59:44
You forgot to light it with a match, that's step 2.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: msiegel on Wed, 21 July 2010, 13:08:40
ripster's not here, man ;)
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Findecanor on Wed, 21 July 2010, 13:17:42
The word "isopropyl" means that it is supposed to contain propanol-alcohol "on average". It is usually a blend of both heavier and lighter alcohols that on average behave like propanol. This means that one brand of "isopropyl alcohol" could have different ingredients than another brand.

I know that industrial etanol (a lighter alcohol) is made in a process which also pollutes the result with small amounts of acetone -- which we know is a solvent that damages Filco keys. This is why you should never use etanol to clean plastic or painted surfaces.
Alcohol made through fermentation and distillation does not contain acetone, but it is such a slow and expensive process in comparison so that it is never used for anything that is not meant for human consumption.

Edit: I am writing out of experience, not citing anything that I read on Google.. :-P
Title: Isopropyl alcohol and FKBN104M/EB
Post by: ch_123 on Wed, 21 July 2010, 13:19:31
So that's why Isopropanol smells like nail varnish remover?
Title: Isopropyl alcohol and FKBN104M/EB
Post by: msiegel on Wed, 21 July 2010, 13:28:37
Quote from: Findecanor;204867
one brand of "isopropyl alcohol" could have different ingredients than another brand.


yes, the bottle gives no indication of the exact ingredients.

looks like we have a big variable :)

also, i guess i got lucky when i used alcohol to clean my old model m mini. O_O
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Ulysses31 on Wed, 21 July 2010, 14:12:09
I use Servisol branded isopropyl alcohol and it's never damaged any plastics i've used it on, including those "soft feel" ones you find on computer mice and other gadgets.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Mur on Wed, 21 July 2010, 15:12:26
Wow! Thanks for everyone's help. I am surprised with the amount of replies I relieved so far. It is very appreciated.

Quote from: majestouch;204823
Mur, the coating used on some Majestouch FILCOs is sensitive to isopropyl and Diatec has been alerted to this. This is not a plastic problem and Costar doesn't make keycaps (obvioustrollisobvious...).

Where did you purchase this board from? I may be able to source individual keys for you if you send an e-mail to support@elitekeyboards.com.

Thanks for your reply. I purchased my Filco from Elitekeyboards about a year ago :) I will be sure to keep in touch with you.

Quote from: msiegel;204856
how long was it in there?

i've had an uncoated alt key from a Zero sitting in a mm of 91% isopropyl for the last 10 minutes and nothing has happened so far...

The ride home was around 25 minutes but we stopped to get something to eat. I would say around 45 minutes.

Quote from: msiegel;204870
yes, the bottle gives no indication of the exact ingredients.

looks like we have a big variable :)

also, i guess i got lucky when i used alcohol to clean my old model m mini. O_O

This is good to know. I thought the alcohol percentage was the only concern. Thank you.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Mur on Wed, 21 July 2010, 15:57:22
Here is a picture of the damage so everyone may see the dangers of over exposure to isopropyl alcohol :D

(http://imgur.com/XeS3q.jpg)
Title: Isopropyl alcohol and FKBN104M/EB
Post by: ch_123 on Wed, 21 July 2010, 16:01:17
Oh dear, if Welly sees this, we will never hear the end of it...
Title: Isopropyl alcohol and FKBN104M/EB
Post by: wellington1869 on Wed, 21 July 2010, 16:22:52
Quote from: ch_123;204917
Oh dear, if Welly sees this, we will never hear the end of it...


too late.

muh ah ah ha ha. more, more acid on the filco!
Title: Isopropyl alcohol and FKBN104M/EB
Post by: JBert on Wed, 21 July 2010, 16:36:18
What, you can now complain about problems due to improper handling?

Wait, I'll go and see if my MX 11800 is fireproof.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: gr1m on Wed, 21 July 2010, 16:47:18
That's gotta suck (accidentally messing up a nice new keyboard).
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Mur on Wed, 21 July 2010, 17:50:23
Quote from: JBert;204941
What, you can now complain about problems due to improper handling?

Wait, I'll go and see if my MX 11800 is fireproof.


Thanks for your reply, however I do not believe I was complaining in anyway. I am absolutely aware it was my fault lol. I was asking for advice from the community.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Mur on Wed, 21 July 2010, 17:57:08
Quote from: gr1m;204948
That's gotta suck (accidentally messing up a nice new keyboard).


Totally but you live and you learn :) I am usually overly fastidious when it comes to these things but for some reason I didn't think about the solvent leaking. I made sure the bag was tilted upwards and supported by another box. I drove carefully since I had my computer in the back seat as well. There was just a slight shifting of cargo in the trunk lol.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Oqsy on Wed, 21 July 2010, 20:52:40
Sorry to hear about that Mur.  

I don't own a filco, and I don't claim filcos to be perfect, flawed, or anywhere in between.  The following is just as a matter of continuation on a thought process brought up before.  

Mishandling is NOT the fault of the company.  However, I have cleaned my model m, northgate, and cherry boards  with 90% isopropyl numerous times with no ill effects.  Concentration, dwell time, and contents of the solution are all variables at play here, and that should be considered.  

Would a filco cleaned with my solution of isopropyl cleaned the way I've used it in the past suffer any damage?  The only way to know for sure would be to replicate the my process with a filco, it could go either way.  

This thread only goes to show that there is a sensitivity to the specific solution of ispropyl for the long duration it was exposed.  This particular incident does not prove or disprove a quality issue.

lmnop, jumping in and suggesting that elitekeyboards needs to "save face" implies there is something wrong with the product.  I'm sure that soaking in solvents is not "intended use" for any filco models, nor any other keyboards on the market, whether they can tolerate it well or not.  Suggesting that majestouch owes something is different than sending him a PM and saying something along the lines of, "hey, this situation this guy is in is a real bummer... do you happen to have a couple key caps and a face plate you could spare out of kindness?"  Grandstanding is grandstanding, and it's pretty transparent.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: microsoft windows on Wed, 21 July 2010, 21:20:05
My Model M can take 90% alcohol. The only thing it did was make the keyboard not look as filthy.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Mur on Thu, 22 July 2010, 14:04:24
Quote from: Oqsy;205100
Sorry to hear about that Mur.  

I don't own a filco, and I don't claim filcos to be perfect, flawed, or anywhere in between.  The following is just as a matter of continuation on a thought process brought up before.  

Mishandling is NOT the fault of the company.  However, I have cleaned my model m, northgate, and cherry boards  with 90% isopropyl numerous times with no ill effects.  Concentration, dwell time, and contents of the solution are all variables at play here, and that should be considered.  

Would a filco cleaned with my solution of isopropyl cleaned the way I've used it in the past suffer any damage?  The only way to know for sure would be to replicate the my process with a filco, it could go either way.  

This thread only goes to show that there is a sensitivity to the specific solution of ispropyl for the long duration it was exposed.  This particular incident does not prove or disprove a quality issue.

lmnop, jumping in and suggesting that elitekeyboards needs to "save face" implies there is something wrong with the product.  I'm sure that soaking in solvents is not "intended use" for any filco models, nor any other keyboards on the market, whether they can tolerate it well or not.  Suggesting that majestouch owes something is different than sending him a PM and saying something along the lines of, "hey, this situation this guy is in is a real bummer... do you happen to have a couple key caps and a face plate you could spare out of kindness?"  Grandstanding is grandstanding, and it's pretty transparent.

Thanks for your reply :) Yes, it is a bummer but I have learned to not dwell on such things. It was an accident and thankfully the damage is only superficial. The lot of us here are particular about these things so it stings us where it counts lol. I showed my girlfriend and she didn't understand what I was talking about until she got it into direct light and was able to angle it.

I agree 110% that mishandling is something the consumer should always be responsible for. I was very impressed that elitekeyboards offered sourcing information for single keycaps. That quick offer of help really says a lot and it is extremely thoughtful.

Again I must concur that this thread should serve as an example of what the solvent could possibly do to materials if long accidental exposure occurs. I included the picture so this thread can purely be used as a reference. I have cleaned said Filco many times with a 1:1 solution of water and isopropyl without problems. The solution in the bottle that leaked was 99% isopropyl alcohol.

Majestouch FILCO keyboards are wonderful and they continue to impress me everyday when I sit down and begin typing.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: JBert on Thu, 22 July 2010, 16:30:23
Quote from: Mur;204983
Quote from: JBert;204941
What, you can now complain about problems due to improper handling?

Wait, I'll go and see if my MX 11800 is fireproof.
Thanks for your reply, however I do not believe I was complaining in anyway. I am absolutely aware it was my fault lol. I was asking for advice from the community.
Oops, I was actually replying to Welly. Sorry to interfere, this thread is surely legit as isopropyl alcohol tends to come up every so often.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Voixdelion on Thu, 22 July 2010, 19:32:47
I wonder if 91% is less damaging than 70% though, just ooc- maybe due faster dry time?  Sometimes using 91% to clean something is tough just because it evaporates so quickly and I can't even wipe it before its dry again... I haven't melted anything yet, but maybe its just lucky I haven't come across anything sensitive.

As to repairing the cosmetics, maybe a shoe polish or dye (like the rit mods?)
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Mur on Wed, 04 August 2010, 13:12:35
Update: Brian from Elitekeyboards was very kind and sourced some info on getting a new faceplate for my Filco. Within a days time I had the info I needed and was able to purchase a new faceplate. As an added bonus he included a new numpad forward-slash key. Awesome.

The faceplate replacement procedure was very easy and a great success. My FKBN104MEB looks brand new and is no longer a shameful reminder of my mistake :D

Many thanks to the community and especially Brian for helping me out.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: gr1m on Wed, 04 August 2010, 15:44:26
Good customer service.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: wellington1869 on Wed, 04 August 2010, 16:26:08
Quote from: ripster;209177
Welly and lmnop are NOT going to like the direction this thread is going.


lol, dude, the great thing about gh is ALL experiences are documented.  I know you're against that. :)
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Oqsy on Wed, 04 August 2010, 17:51:35
Way to go, glad this was resolved to everyone's satisfaction (minus the haters :P )
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Mi9V on Wed, 04 August 2010, 19:20:47
Is 70% ethyl alcohol (ethanol) safer than isopropyl alcohol?

I frequently use it on various surfaces for cleaning and as a mild antiseptic, but I wouldn't want to ruin an expensive keyboard with it!
(My cheap Logitech doesn't seem bothered by it.)
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Oqsy on Wed, 04 August 2010, 19:27:50
I've never had any trouble with denatured alcohol for cleaning, but honestly, soap and water works just as well most of the time.  Why take chances with solvents when soap and water *won't* melt your keyboard and is sufficient?  

And another thing dude, lysol wipes or clorox wipes are damn effective at cleaning up a keyboard, and have never damaged any of my stuff.  The fact that you can't really *spill* a wipe into a keyboard prevents mishaps like the one from the OP, and if you're really worried, you can wipe over them again with a damp clean cloth to remove any residual chemicals and then dry however you prefer...
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Mi9V on Wed, 04 August 2010, 19:46:54
Quote from: Oqsy;209273
[...] and then dry however you prefer...

Is the microwave oven OK? It probably wouldn't damage the plastics... I'm kidding, of course! :bounce:
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Oqsy on Wed, 04 August 2010, 21:30:24
I'm not sure which breed of troll I'm dealing with, but I'm pretty sure it prefers American made PCs and/or MS operating systems...
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Mi9V on Wed, 04 August 2010, 21:56:38
Quote from: Oqsy;209307
I'm not sure which breed of troll I'm dealing with, but I'm pretty sure it prefers American made PCs and/or MS operating systems...

Oh come on, calling a newcomer a "troll" isn't exactly nice, you know!

I'm willing to admit that my humorous attempt was a bit, hm, "unlucky", but I do not understand the motivation behind your offensive (or perhaps "defensive"?) attitude.

Okay, it was a bad joke. Perhaps the fact that english is not my mother-tongue doesn't help, either. You could have let it pass, but, no!, you had to call me a troll.

After all, I clearly stated that I was kidding (please re-read my previous post, I'm used to clearly stating the jokes –although I believe it to be bad form– in order to prevent the humor deficient from feeling offended). Also, the thread had already severely derailed. It seems that only senior members are allowed to get off-topic. Too bad, I should have known.

I'll be happy to inform you, though, that you are completely wrong.
Your score is 0 out of 3 :


EDIT:
For those who didn't "get" my (admittedly bad) joke, what I meant was that putting (for a few seconds) a slightly damp keyboard in a microwave oven would probably dry it completely and at the same time leave the plastic undamaged (which is the subject matter of the thread).
However it would totally fry the electronics!
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Oqsy on Wed, 04 August 2010, 23:13:52
Troll is a term often used affectionately around here... it's thrown around like "buddy" or "dude", and the IBM / MS Windows references are directed toward two specific members of this board who teased and/or berated for "trolling", but most of us here do it and/or comment on it in jest in almost every thread.  Strictly dry and uninterrupted conversations about computer hardware without any teasing, non-sequiturs, and name-calling would be maddening, even to the engineering and comp-sci majors among us :P  Take it easy, and enjoy the ride.

Being called a troll around here often means you're fitting in just fine :P  

Also, it is quite possible that you just pulled the ultimate troll move and convinced me you're not a troll and made me feel bad enough to type out this explanation for no real reason.  If so, the part about not speaking English as your first language was a genius touch, because it automatically adds a bit of doubt and guilt to the person calling you a troll.

In any case, it is what it is.  I meant no harm, and I got your joke about the microwave.  Thanks for explaining it though, some of the members here operate on a 2nd-5th grade level and need things spelled out for them.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Oqsy on Thu, 05 August 2010, 17:52:47
ripster:  for the sake of the thread, would you mind telling us the offending chemical for the keys in your image?
Title: Isopropyl alcohol and FKBN104M/EB
Post by: clickclack on Thu, 05 August 2010, 18:02:39
I figured I would do a little test yesterday to see the longer term effects of different types of alcohol on keys. I do tons of chemical and plastic tests but they are usually not for prolonged periods of time.

From what I know, and I am by no means a chemist but I do believed I am experienced enough to throw some info out there.

Typical isopropyl (rubbin alcohol) in its different concentrations 70-99%  I believe vary only in the amount of water added. I don't think they have other chemicals added. 99% is a stronger solvent but evaporates quickly so it can cause less damage just because its not around that long. Lower concentrations stick around longer so the alcohol can have more effect. Another reason why its decent for disinfecting.

However "Denatured" alcohol is a different story as well as a different alcohol altogether. It's denatured alcohol that has different (and often undefined/specified) chemical additives like MEK. It's so you don't drink it or can't (because its ethanol the only drinkable type). I would worry about this alcohol because of these other possible corrosive properties. But this is not always the case since ethanol is not as potent as isopropyl (being a different alcohol altogether).

So to keep the post clean (heehee) I will post my findings in this next post-
EDIT:hmmm... gimmme a second here I seem to have misplaced my swatches...
hold on...
Title: Isopropyl alcohol and FKBN104M/EB
Post by: audioave10 on Thu, 05 August 2010, 18:12:54
I agree, as Methyl Ethyl Keytone is downright dangerous.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Mi9V on Thu, 05 August 2010, 19:13:33
@Oqsy:
Quote from: Oqsy;209340
I meant no harm, and I got your joke about the microwave.

I'll interpret that as an apology. In that case, apology accepted.
...

kidding! No need to be apologetic (or feel "doubt" or "guilt" :P), and I don't intend to apologize, either, because I consider my [strike]over[/strike]reaction to be normal.

I believe though that I didn't approach your post with the right mentality. I mean, when I clicked the "I-accept-the-terms-of-service" button, I already knew about the lighthearted atmosphere of the forum.

Still, I was unprepared for this:
Quote from: Oqsy;209340
Troll is a term often used affectionately around here... it's thrown around like "buddy" or "dude"

That left me totally speechless. From various online communities, I've always known the term "troll" as a derogatory one. I'm still unable to utter a single word, but thankfully I can type my response:

It's OK, no hard feelings. :hug:
[My god, isn't that smiley cheesy!]
I feel I now understand you all a bit better.

Quote from: Oqsy;209340
Also, it is quite possible that you just pulled the ultimate troll move and convinced me you're not a troll and made me feel bad enough to type out this explanation for no real reason.  If so, the part about not speaking English as your first language was a genius touch, because it automatically adds a bit of doubt and guilt to the person calling you a troll.

That certainly wasn't my intention. I'd be a liar though, if I didn't admit finding that thought extremely amusing!


@everyone else:
Sorry the continued off-topic, I just had to respond.
Awaiting clickclack's test results.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: clickclack on Thu, 05 August 2010, 19:47:12
They were right behind me, but I got tired of looking and had lunch! =P
haahaaaaaha

I only had a tiny amount of 99% isopropyl so I did all tests with 70% and Denatured (clean burning with mystery ingredients)

To minimize evaporation and decrease possible enhanced hygroscopic proterties they were left to sit undisturbed partially submerged in the chemicals, with equal volumes of air.
I used a few black keycaps from three different sets for 4 different time periods.
-5min and less normal cleaning exposure
-1hr exposure soak
-6hr exposure soak
-12hr exposure soak

here are my odd and interesting findings... =)

1)keycaps with legends and coating from my stock Filco board-
Isopropyl
-5min, no change/effect
-1hr, slight chalky residue with whitening/clouding on "some" keys and mostly to the tops. The effect is semipermanent.
-6hr, chalky residue on "most" keys which can be wiped off but "most" left a semipermanent slighty cloudy whitening to the key.
-12hr, heavier chalky residue on "most" but otherwise the same as the 6hr test
Denatured
-5min, no change/effect
-1hr, no change/effect
-6hr, slightly chalky residue that can be wiped off, slight clouding/whitening left over that can "mostly" be wiped off too!
-12hr, very chalky residue that can be wiped off but the slight clouding of the plasic is most semi-permanent this time.

2)Filco coated legends replacement set-
Isopropyl
-5min, no change/effect
-1hr, some had a slight chalky residue or whitening, but I was essentially able to wipe/rub it all off
-6hr, some had a chalky residue but some had a whitening/cloudy effect that is mostly permanent, some with very tiny blisters.
-12hr, medium to heavy chalky residue which can be wiped off but leaves a mostly permanent cloudy/whitening on the key.
Denatured
No change/effect at any soak duration

3) Blank Filco keys uncoated-
IsopropylNo change/effect at any soak duration
Denatured
No change/effect at any soak duration

Special notes:
1) no embrittlement noted for any of the keys
2) The formula for the coatings has changed a number of times
3) the keys are not made of a "lesser" plastic.
4) you are good if you just clean them normally, no extended soaking (as with some keys)
5) higher percentage of Isopropyl can damage the coating quicker.

I hope this was of some interest or help
(I have some other info but I need to get back to work)

thanks for reading =)
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Mental Hobbit on Fri, 06 August 2010, 09:57:11
Quote from: ripster;209704
Too many trolls around Geekhack.  


I wouldn't say too many. Putting just one troll on ignore improved the situation for me a lot.
Let me know when he eventually makes his first useful contribution, as you once predicted.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Findecanor on Fri, 06 August 2010, 11:09:12
Quote from: audioave10;209618
I agree, as Methyl Ethyl Keytone is downright dangerous.

MEK is the active ingredient in many plastic adhesives. A very strong solvent of plastics.

Btw, alcohol + chlorine can react to create chloroform, which is also a strong solvent. That is not a very good combination either.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: typo on Sat, 07 August 2010, 01:13:06
anytime i got alcohol on abs type plastic it turned horribly white. which is intresting because metadot states to "clean your keyboard with a drop of alcohol". maybe the das is some other type of plastic. it sure looks to me if it were applied to the shiny case it would mar or turn white. i don't plan on trying it.

which brings me to ask a question: is metadots customer service as terrific as zf/cherry? i am guessing metadot would give someone a hard time about a warranty return. just a guess. on the other hand zf stands behind their products 100%. different market, they have to. these are serious business machines that are the backbone of fortune 500 companies. i am also guessing the das will not break in a year. i am going to ask metadot for a small favor monday. i hope they oblige. i'll let you guys guess what i want from them lol.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Oqsy on Sat, 07 August 2010, 01:36:45
a metahandjob?
Title: Isopropyl alcohol and FKBN104M/EB
Post by: ch_123 on Sat, 07 August 2010, 04:41:00
Quote from: typo;210071
anytime i got alcohol on abs type plastic it turned horribly white. which is intresting because metadot states to "clean your keyboard with a drop of alcohol". maybe the das is some other type of plastic. it sure looks to me if it were applied to the shiny case it would mar or turn white. i don't plan on trying it.

which brings me to ask a question: is metadots customer service as terrific as zf/cherry? i am guessing metadot would give someone a hard time about a warranty return. just a guess. on the other hand zf stands behind their products 100%. different market, they have to. these are serious business machines that are the backbone of fortune 500 companies. i am also guessing the das will not break in a year. i am going to ask metadot for a small favor monday. i hope they oblige. i'll let you guys guess what i want from them lol.


Their customer support service has a very good reputation... Especially in regards to returns when they were selling keyboards that were unusable :P
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Oqsy on Sat, 07 August 2010, 05:29:57
ripister: http://geekhack.org/showpost.php?p=209612&postcount=44
I'm still curious what cause the damage to the keys in your pic.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: keyb_gr on Sat, 07 August 2010, 09:36:22
Quote from: typo;210071
anytime i got alcohol on abs type plastic it turned horribly white.
Interesting, an AT102DW didn't seem to mind (but the glue remains came off nicely). I haven't noticed any adverse effects with typical Cherry ABS/SB cases either. Now of course (a) these typically are beige and (b) I don't drown the cases with alcohol but rather wipe them with a wettened piece of toilet paper (same as for used CD jewelcases - if you ever get one that's suspiciously dull, you may be surprised at the brown stuff coming off...). 94% denatured spirit btw.

(Did you know that the substances used for denaturing tend to be used as softeners as well?)
Title: Isopropyl alcohol and FKBN104M/EB
Post by: Oqsy on Sat, 07 August 2010, 12:45:26
Hm that kind of submarines the idea of doing acetone + RIT dye like the yo-yo dying dudes.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: clickclack on Sat, 07 August 2010, 15:33:46
It looks as if he used acetone, and I think I remember him saying he used it too.
=)

Edit: Ooops! I forgot to refresh, rippy beat me to it!
The acetone and dye works pretty good, just check to see if the keys are coated. In general you just need to be more cautious and wait for the plastic to harden afterwards. As a tip- it can greatly help the dye consitency in the part if you lightly break up the surface tension in the water based dye solution.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: clickclack on Sat, 07 August 2010, 15:42:53
geez... I am really slow!
I think you posted that before I even finished editing the other post! LoL!
=P
haahaa
Title: Isopropyl alcohol and FKBN104M/EB
Post by: typo on Wed, 11 August 2010, 20:44:35
metadot states "if the keys or case become soiled, use a small amount of alcohol to clean them".

i did this to an adesso and had the same results as the op in this thread.
i do not see how the das is different since it uses the same materials.
i will just go ahead and do it to the das. if the board or keys are damaged i will take it up with metadot. i suppose filco does not make a similar statement to that of metadot. unless the das is in fact actually something other than abs. you do not contact alcohol with abs plastic for good results afaik.
Title: Isopropyl alcohol and FKBN104M/EB
Post by: clickclack on Thu, 12 August 2010, 12:12:16
Quote from: typo;211705
metadot states "if the keys or case become soiled, use a small amount of alcohol to clean them".


There should be nothing wrong with that.
I have cleaned hundreds of keyboards with alcohol with great results, not once did it cause damage. In my tests earlier in this thread I had even shown how cleaning with alcohol is ok. It's letting it sit in alcohol that is "sometimes less desireable" with "some coated" keys.

If anyone is really worried just do a test spot on the underside or back of one key.

=)
Title: Isopropyl alcohol and FKBN104M/EB
Post by: typo on Thu, 12 August 2010, 19:39:28
lol, ripster.

i used a cotton swab soaked in alcohol 91% to clean an adesso's keys. they turned all cloudy white. maybe that was just a fluke. i did seem to remember that alcohol will melt abs plastic. that is probably after prolonged contact though. i imagine if you just wipe it and dry it is is good. i do not know what happened to that adesso. it looked like the op's in less than 30 seconds of contact. it could have been a wrong formulation on some run they had. i have no idea, just guessing.