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M-88
September 2nd, 2008, 10:31 PM
I have a few keyboards that were made around and before 1995. When I got them a few years ago, they were yellowing. Haven't yellowed much in the few years I have had them, but I would like to get these back to white/gray. Is there anything I can do to accomplish this?

I was thinking some sort of powder bleach - but would that damage the texture?

Zeela
September 2nd, 2008, 11:06 PM
I suggest you read this thread on an Amiga-forum...

http://eab.abime.net/showthread.php?t=37808

It seems that the yellowing problem is solved.

Yzzerdd
September 3rd, 2008, 03:31 AM
Furthermore, read this thread, which was the 1st listed when searching "remove yellowing"

http://vintage-computer.com/vcforum/showthread.php?t=11877&highlight=remove+yellowing

--Jack

M-88
September 3rd, 2008, 05:15 AM
Thanks for the link. Where can I get the 30% h202. The stuff sold in drugstores is only like 2% right?

Anonymous Coward
September 3rd, 2008, 06:00 AM
According to the article you can get it at beauty supply stores.

Merlin
September 3rd, 2008, 11:30 AM
Beauty supplies stores sell up to 20% strength, that's plenty strong enough.

Lorne
September 3rd, 2008, 02:18 PM
I just got something from a company called Prochem.
It's called Urine Rescue.
It's not less than 20% hydrogen peroxide, and not more than 40%.
Runs about $ 22/gal.
I've got a little experiment going right now on some parts.

Lorne.

M-88
September 4th, 2008, 03:51 PM
Thanks for the tips. I'll check at a beauty supply place ... I won't need a big amount so that should work.