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  1. #1
    BirgerA's Avatar
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    Rockland Colloid Tintype kit - how long does it keep

    Hello all

    I was reminded the other day that hidden away in my attic there was a Rockland Colloid Tintype kit that has been sitting there for I guess almost ten years.

    Does anyone know how long this stuff is supposed to keep. The package has only been opened to check what's inside, no inner packages have been broken or opened. Can I expect it to work as described, or should I assume that the sensitivity of the material has changed somehow (I would guess decreased) ?

    Thanks in advance
    Regards

    Birger A.

    ------------------

    Idealism is easy on a full stomach

  2. #2

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    hi birger

    there is a "test" listed on the rockland colloid website that helps determine
    if the emulsion has gone bad or is still good ...
    http://www.rockaloid.com/faq.html#8
    ( top of page )

    i have used liquid light that is 10 years old
    and it increases in contrast from what i remember ..
    i am not sure how AG plus will react to age though.

    john



 

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