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Thread: Whitening yellowed toys with Hydrogen Peroxide

  1. #371
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    if anybody is concerned about the peroxide being to harsh or something of that nature, you could try an ordinary bathroom mould spray. I've bleached a few things by accident with this stuff, just saying.

  2. #372
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    My concern with the peroxide is that there isn't enough higher concentration of it easily available in Australia

  3. #373
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    Quote Originally Posted by Ploughmans Lunch View Post
    How is it on non-white plastic that's slightly yellowed? I have a Hotspot which looks a little manky and it might be the same sort of thing?
    All plastic of that kind yellows regardless of color. It's just that some of the base color makes it more noticeable than others. For example, yellowing blue tends to look kind of green and so forth.

  4. #374
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    You guys still mucking around with this stuff? I moved to using napisan type presoak product years ago. Oxy action creates hydrogen peroxide. This is from the rc community.

    Want to rejuvenate and preserve rubber? Auto trans fluid.
    Code:
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    |      IMMA FIRIN MA LAZAR!!!
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  5. #375
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    Quote Originally Posted by MV75 View Post
    You guys still mucking around with this stuff? I moved to using napisan type presoak product years ago. Oxy action creates hydrogen peroxide. This is from the rc community.

    Want to rejuvenate and preserve rubber? Auto trans fluid.
    Huh?? Napisan?? Proof or how to use please??

  6. #376
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    The active ingredient of those "oxy-action' cleaners is Sodium Percarbonate. Content levels vary among the various brands and some of them add perfumes, surfectants and anti-clumping agents.

    It breaks down into Hydrogen Peroxide (which is what you're after) and Sodium Carbonate (a common water softener). I haven't heard much about it's use for whitening plastics but it's usually the go to cleaner for homebrewers.
    Any figure that comes with swords demands wrist articulation.

  7. #377
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    Yea, pretty easy. Just add warm to hot water, not boiling, more to the warm side, a bunch of the product and the stuff you want to treat in a container and leave for a while.
    Code:
    O o 
      _
     / --------------------------------
    |      IMMA FIRIN MA LAZAR!!!
     \_--------------------------------

  8. #378
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    Quote Originally Posted by MV75 View Post
    Yea, pretty easy. Just add warm to hot water, not boiling, more to the warm side, a bunch of the product and the stuff you want to treat in a container and leave for a while.
    In the sun??

  9. #379
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    If you want to, you don't need to. Results won't be as good at first as just using peroxide due to lower concentrations, but it's a lot easier to do, and you can pick up the product in any store that sells washing detergents. Just look at the active ingredient amounts on each package. Last time I bought some was just coles homebrand stuff.
    Code:
    O o 
      _
     / --------------------------------
    |      IMMA FIRIN MA LAZAR!!!
     \_--------------------------------

  10. #380
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    Quote Originally Posted by MV75 View Post
    You guys still mucking around with this stuff? I moved to using napisan type presoak product years ago. Oxy action creates hydrogen peroxide. This is from the rc community.

    Want to rejuvenate and preserve rubber? Auto trans fluid.
    I tried it about 8 months ago - Poor results. What specific type did you use?

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