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geekhack Community => Keyboard Keycaps => Topic started by: ianxblog on Thu, 20 February 2014, 15:51:31

Title: Need advice on Retrobrite
Post by: ianxblog on Thu, 20 February 2014, 15:51:31
Hello.

I have two moogle kits from BTC-53's (didn't got the second one yet tho) that i'm using/swapping on a Capacitive plate mounted & pcb domes Chicony-kb5161, just because the profiles are better for me and they feel better on corners.

So, they're SO yellow. I was thinking about painting them, because I want them blank white, but wouldn't mind trying to clean. I always read about dental tablet* and such.
They're pad printed. So, if the dental floss or any other metod could remove the printing, it would be a total bonus.

So, here's my questions:


I would also like to make the case cleaner, it's a full size 2 piece screwed case. How can I do it?
Title: Re: Need advice on Retrobrite
Post by: fohat.digs on Thu, 20 February 2014, 16:26:20
First, the dental floss mod is where you put a 1 cm length of dental floss in the spring of a buckling spring keyboard to quieten it.

Retr0-brite is a process of mixing harsh chemicals (especially bad for the eyes) and exposing the plastic to sunlight.

Apparently, a couple of decades ago, it was popular to mix bromine into ABS plastic for fire-retardance, and it caused the plastic to yellow over time.

I have tried it several times with a couple of resounding successes, several partial failures, and many total failures.

The trick is probably getting the chemical mixture into a nice gel that does not dry too fast, and exposing it to good strong sunlight for several hours.

As far as removing pad printing, you will probably have to abrade it. If I were doing it, I would use my electric eraser, but I am an old man and only an old-school architect, draftsman, or artist is likely to own one, so try a buffing pad on your Dremel instead.

Title: Re: Need advice on Retrobrite
Post by: ianxblog on Thu, 20 February 2014, 17:14:51
First, the dental floss mod is where you put a 1 cm length of dental floss in the spring of a buckling spring keyboard to quieten it.

Retr0-brite is a process of mixing harsh chemicals (especially bad for the eyes) and exposing the plastic to sunlight.

Apparently, a couple of decades ago, it was popular to mix bromine into ABS plastic for fire-retardance, and it caused the plastic to yellow over time.

I have tried it several times with a couple of resounding successes, several partial failures, and many total failures.

The trick is probably getting the chemical mixture into a nice gel that does not dry too fast, and exposing it to good strong sunlight for several hours.

As far as removing pad printing, you will probably have to abrade it. If I were doing it, I would use my electric eraser, but I am an old man and only an old-school architect, draftsman, or artist is likely to own one, so try a buffing pad on your Dremel instead.

Sorry, I meant dental tablet!
Title: Re: Need advice on Retrobrite
Post by: Pacifist on Thu, 20 February 2014, 17:21:09
tablets take off the grime but won't take away yellowing from old age