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  1. #21
    donbga's Avatar
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    Quote Originally Posted by Photo Engineer View Post
    Don;

    That is a 50% wt/vol solution. It is certainly ok, but very strong. It is by no means 100%.

    PE
    I knew you would say that, thanks for the clarification.
    It is a strong sol. so a little goes a long way, but it certainly beats having mould (mold?) in Part A. Some people put Formalin in their gum mixture so I think the 50% thymol sol. is a better alternative.
    Don Bryant

  2. #22
    Photo Engineer's Avatar
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    I find that 10% thymol at 1 drop / 100 ml is good enough. More of it gives an odor to the materials that is strong, and also may cause tackiness.

    PE

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