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  1. #11

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    a)
    Ron, so the no fog increase with heat up to 200 deg. C. you mention in post #5
    was not with a traditional emulsion?

    b)
    These two statements in posts 5 & 9 seem a bit inconruent:

    #5
    AFAIK, heating to 200 C or thereabouts has no effect on fog.
    I never went higher, but that is one test I did run.
    #9
    "I have gone hotter than that, but 200 C is just fine for me and the film was Estar."

    Did you mean to put a knot in #9?
    ---
    c)
    At what temperature does Estar melt?

  2. #12
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    a) it was a traditional Br/I emulsion.

    b) Not so. I used 200 C for processing and had no fog, but I did heat samples of support higher, I just did not make an image on the samples AFAIK. I have forgotten the details of peripheral tests. Sorry.

    c) Over 250 deg C. It does deform at the edges at 200 C IIRC.

    PE

  3. #13

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    Quote Originally Posted by Photo Engineer View Post
    I used 200 C for processing and had no fog, but I did heat samples of support higher, I just did not make an image on the samples AFAIK. I have forgotten the details of peripheral tests.
    ---
    Over 250 deg C. It does deform at the edges at 200 C IIRC.

    PE
    Ok. Thanks for the clarification.

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