Page 7 of 8 FirstFirst ... 2345678 LastLast
Results 61 to 70 of 77

Thread: Has anyone seen this!!! (whitening yellowed plastics)

  1. #61
    Join Date
    28th Dec 2007
    Location
    Sunshine Coast
    Posts
    8,100

  2. #62
    MV75's Avatar
    MV75 is offline Rank 6 - Dedicated Member
    Join Date
    27th Dec 2007
    Location
    Brisbane, QLD
    Posts
    2,879

    Default

    I went into coles and bought some H.P. for ~$3 for 200ml (half the cost of the chemist), and did some lego.

    It came out fine, definitly whiter, and I had left it for 13 days. Yep, that long and it's ok so far.
    Code:
    O o 
      _
     / --------------------------------
    |      IMMA FIRIN MA LAZAR!!!
     \_--------------------------------

  3. #63
    TheDirtyDigger Guest

    Default

    Anyone doing this just take note...
    It destroys chrome completely. Absolutely eats the stuff.
    As one of my Red Alerts two front wheels discovered.

  4. #64
    Join Date
    29th Dec 2007
    Location
    NSW
    Posts
    14,762

    Default

    Quote Originally Posted by TheDirtyDigger View Post
    Anyone doing this just take note...
    It destroys chrome completely. Absolutely eats the stuff.
    As one of my Red Alerts two front wheels discovered.
    Yeah I imagined so as its supposed to be very corrosive to metal. I always try to pull apart the figures as much as I can before bathing them.

  5. #65
    Join Date
    29th Dec 2007
    Location
    Sydney
    Posts
    1,691

    Default

    I don't know if this is of interest and apply to plastics used in toys...
    but, i thought i would post the link anyway.

    Why Super Nintendos Lose Their Color: Plastic Discoloration in Classic Machines

  6. #66
    Join Date
    28th Dec 2007
    Location
    Sunshine Coast
    Posts
    8,100

    Default

    That was quite good. He seems to agree that Peroxide is the best:

    Despite numerous demonstrations of this technique and a seemingly sound theory behind it, the jury is still out on whether this method harms plastics or color pigmentation in the long-term. Be that as it may, this technique is currently the best, least-destructive method we have of reducing yellowing in ABS plastics.
    (emphasis mine)

  7. #67
    Join Date
    4th Jun 2009
    Location
    West Sydney
    Posts
    177

    Default

    will definately give it a go

  8. #68
    Join Date
    8th Jun 2009
    Location
    Melbourne
    Posts
    480

    Default

    Nice changes there. I see someone did a test with their Jetfire in the link in the first post. Might pull apart my Jetfire and do the same. Boost the value of it

  9. #69
    Join Date
    29th Dec 2007
    Location
    NSW
    Posts
    14,762

    Default

    I have noticed that when its really cold like the last few days, it doesn't work so good even if it was somewhat sunny.

    I think that the effect that the sun does is heat the peroxide a little bit gradually and that is at least one of the key elements of making this work.

  10. #70
    TheDirtyDigger Guest

    Default

    It seems to do some damage to rub signs as well. I assume because of the metal content.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •