Retrobrite

[stefcep2]

As many of you would know Retrobrite is a mixture that can be used to whiten plastics that have yellowed, like Amiga cases and keys.  The folks at EAB have an in-depth sticky on it.

Just like to say it works.  And how!!  Bought some "Creme developer" which contains 12% hydrogen peroxide from cosmetics shop (Priceline ,can also get from any hair dresser), added a pinch of washing powder with Oxy (dissolved first in a bit of water) and then applied the pasty mix to my A1200 case, A4000 front face, A4000 keyboard, with a small paint brush, left it in the sun for 8  hours, and they all ended up looking white.  As in "looks new" white.  Amazing!!!

The keys I removed individually and put then in a glass jar, added some tap water to the mix and left out in sun.  Took longer to whiten-probably because the mixture was diluted.  Also came out "as new white".

Really simple, cheap ( $5 for 200 ml of peroxide 12%, $10 for 1 litre, and $5 for 1 litre of oxy washing powder, far more than you'll need), and EFFECTIVE.  Kudos to the folks at EAB.

Also did it to a SNES I had, worked a treat.

[stefcep2]

With the keys, do you have a problem with the Letter maskings coming off ?, or being bleached ?

None whatsover!!.  Look BRAND NEW.  I was surpised how the dark functions keys came out, I didn't think they were as yellowed, but they were, I can really see the yellow in the couple I kept for comparison.

[stefcep2]

Wow, that 12% Creme Developer from Priceline works? I bought some of that because it was the strongest peroxide available, but I didn't think it'd be strong enough to use for RetroBright. I still used it in a tub when I cleaned my Amigas, but next time I'll try the same method with the Oxy and leaving it outside for a day, thanks!

And you don't need ti use xanthum gum or glycerol. Just brush on the mix of Creme developer with Sards Oxy or White King Oxy washing powder dissolved in a bit of water(Safeway, $5-$6 for 1 L )

It does dry out however, and every couple of hours I just went over the case with a moist brush.

I think it works quickly here in Aus because of our UV levels.  We don't have the highest rates of skin cancer in the world for nothing!

[stefcep2]

Here's some photos.

I didn't take a photo of the case before I retro-brighted it, but it ws yellow like the keys.

[stefcep2]

Sunlight and the oxy seem to be the vital ingredients.