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yellowing plastic problem - finally solved !  

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andrew gray
(@aandrewhotmail-co-uk)
Eminent Member
Joined: 6 years ago
Posts: 35
26/07/2010 11:28 pm  

Today i was looking around the forums when i came across this information about this newly discovered process called RETR0BRIGHT that seems to be sweeping through the "retro console" community.
It got me thinking about stuff...could this restore the white colour to my JVC Videosphere?
could this start a trend...is this a bad thing?
there are already a couple videos on you tube.
What do you all think?

heres the piece...

Here's a recipe for making a wonderfully caustic goop called Retr0bright that restores the color of of old computer cases and Lego bricks. It contains hydrogen peroxide, glycerine, vegetable gum, and sodium percarbonate.
Anyone who has dug their old computer or console out of the cupboard or loft for some retro gaming will probably have noticed that it maybe hasn?t worn too well with the test of time. The plastics these machines were made of is called ABS and to make it flame retardant (just in case it catches fire after a marathon session) the plastics manufacturers added chemicals that caused the plastic turn yellow or, even worse, brown over a long period of time.
It was originally thought that the yellowing was permanent and that the only solution to this was to paint the plastic in its original colour and cover the problem up. However, a chance discovery was made in March 2008, by The CBM Museum at Wuppertal in Germany ( http://www.forum64.de), that immersing parts in a solution of Hydrogen Peroxide for a few days could partially reverse the process. This was initially taken up by the Amiga community in Germany ( http://www.a1k.org) and the idea eventually found its way to the English Amiga Board ( http://eab.abime.net), where a madcap collection of chemists, plastics engineers and retro hackers managed to perfect this concept and put it on steroids, with help from other forums.


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SDR
 SDR
(@sdr)
Illustrious Member
Joined: 15 years ago
Posts: 6462
27/07/2010 12:12 am  

Interesting.
My Sonicare electric toothbrush, eight or nine years old, is now quite yellow -- best revealed when fitting a new (white) brush head, and certainly the only flaw in this fine piece of equipment. Though I couldn't care less what it looks like, I'd be willing to experiment to see if the yellowing could be reversed.
What does Koen think of this ?


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Cream and Chrome
(@cream-and-chrome)
Noble Member
Joined: 11 years ago
Posts: 200
30/08/2013 8:33 pm  

Has anyone ever used this stu...
Has anyone ever used this stuff with any success? Looks terrifying.


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jw468
(@jw468)
Estimable Member
Joined: 15 years ago
Posts: 88
30/08/2013 9:35 pm  

My Sonicare has yellowed, too.
In my case, I think it's from the UV light coming in through the window.


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