Best way to treat slides with mould growth

Discussion in 'UK Photography' started by Tim Streater, Aug 31, 2007.

  1. Tim Streater

    Tim Streater Guest

    OK - I confess, I probably didn't store them very well. But I now have
    1500 slides, of which perhaps 10% appear to have some growth on the
    emulsion. They date from about 1967 to now and are all Kodachrome 2, 25,
    or 64.

    I took one to an E6 lab in Cambridge, the guy did a small experiment. It
    was unmounted and run through the bleach and rinse phase of the E6
    process. That seemed to fix the problem without affecting the image.

    Before taking the rest down, does anyone have any comments on this
    process as a good method of solving this issue?
    Tim Streater, Aug 31, 2007
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  2. there is always the risk of drying marks and mechanical damage when
    handling a single 35mm frame. I wouldn't think that the process would
    do any harm itself though. The bleach should certainly kill off any
    spores on the film!

    The question here really is ............ what is the common factor that
    links all of the infected slides? Were they stored together? Do they
    fall into groups of infected slides - ie they were all processed at the
    same time - there must be something to cause some of them to be infected
    and, apparantly, not others.

    If the infected slides were stored in with the apparantly clean slides
    you may have a bigger problem that you think. The infected slides that
    have an obvious fungal growth may well have infected other slides, its
    just that the colonies on the newly infected slides haven't bloomed and
    spread yet - and may never do.

    If these images are important you would be well advised to scan the
    apparantly clean images at the very least or to have high quality dupes

    Also if you do have that 10% rebleached and rinsed you had best think
    about where you will store them - you won't be wanting to mix them in
    with the apparantly clean slides will you?

    Personally I would be surprised if the infection stops at the 10% you
    have already identified.


    Dudley Simons, Aug 31, 2007
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  3. Tim Streater

    Tony Polson Guest

    The best and most often used film cleaner is ASPEC. It is used
    extensively by people dealing professionally with archive movie film.

    ASPEC can still be purchased mail order from 7dayshop but probably not
    for much longer:

    You may wish to contact the manufacturer of ASPEC for specific advice:

    The Process Control Company
    Griffin Lane
    HP19 88F
    tel: 01296 484877
    Tony Polson, Aug 31, 2007
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