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  1. 12-17-2014, 03:26 AM

    Thread: Bleaching Horn

    by Caledonian
    Replies
    7
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    4,480

    I believe it is primarily ultra-violet light that...

    I believe it is primarily ultra-violet light that ages horn, and logically exposure to stronger UV light than sunlight would accelerate the process. I have no idea, though, of the relative strength...
  2. 12-16-2014, 07:26 AM

    Thread: Bleaching Horn

    by Caledonian
    Replies
    7
    Views
    4,480

    This is an old thread, but I have just come...

    This is an old thread, but I have just come across this patent on Google Patents:

    Patent US2667475 - Bleaching kebatinous materials - Google Patents

    Considering the amount of inexpensive black...
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