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Thread: Restore Yellowed Plastic

  1. #1
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    Restore Yellowed Plastic

    Thought I'd share my experiences with de-yellowing plastic.

    Some of you may or may not be aware of a RetroBright which is a formula created by a smart chap named Merlin which is a chemical cocktail to bring that old yellowed plastic back to white.
    I wont go into detail here you can just read about it on his site HERE
    Essentially the formula is as follows
    1/2 pint (200ml) Hydrogen Peroxide, 30% strength
    2 level teaspoons of Xanthan Gum
    1 level teaspoon of Glycerine
    1/4 teaspoonful of Oxy laundry booster
    1 teaspoonful hot (not boiling) water

    Pfft too hard I say. Another clever chap found using off the shelf Cream Peroxide Jerome Russell Cream Peroxide 40 vol 12%. will do the same thing.
    No idea if you can buy it in Australia so I just bought it off ebay. His site is HERE

    In a nut shell all you do is take your yellowed Computer/Console/Handled rip the guts out of it then give it a good clean(IMPORTANT), then with the proper safety gear (gloves) you use a brush to paint the Cream Peroxide on, wrap the case in plastic then stick it out in the sun for a few hours. You will probably have to repeat the process a few times to get it back to original.

    I've done a few old hand helds and did this Oil Panic earlier today.
    Before
    IMAG0038.jpg

    After
    IMAG0039.jpg

    This whole front and side was yellowed
    IMAG0040.jpg

    I've done 3 applications in this case and may do a 4th but I reckon it looks great.
    I think you'd probably get even better/faster results using a UV lamp.
    Last edited by Arcade King; 5th April 2012 at 02:35 PM.

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    Very nice results, new battery cover stands out a bit but a great improvement.

  3. #3
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    Not much you can do about the cover I'm afraid, better then sticky tape lol.

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    Wow, thats great stuff, thanks very much for posting that. I'm sure I'll need to that at some point.
    My Youtube Channel: http://www.youtube.com/user/vcoleiro1/videos?view=0

  5. #5
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    Awesome stuff. I have so much stuff I wanna try this out on. Pulled my old Amiga 500 out and could not believe how yellow it was. That will be the first candidate for the retrobright test.

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    Yeah half of the keys on my Amiga 1200 are yellowing, that will be next

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    Great results Trav , do you do teeth whitetening ..

  8. #8
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    Thanks for the write up AK, I've been meaning to look into this myself. I'm very excited by your results, especially given that you found a much simpler approach.

  9. #9
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    nice work

    curious does it effect the plastic at all much Ie risk of making it brittle ect
    you can always expect change in life..except from vending machines

  10. #10
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    Assuming that was the oil panic you bought from me, that is an amazing result.

    I need to do that to a PS1 I bought.

    Great thread.
    Hindsight is always in high definition!

    C64anabalt: 9647m


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