From: Clay (wcharmon@wt.net)
Date: 08/02/03-08:53:53 AM Z
>
I know when I was printing gum in my old space here in the murderous
Houston summer heat and humidity that I had very little window between
the time the gum coat was dry enough to print and when the dreaded dark
effect began to kick in. Fogging was common, and I sometimes had to let
prints develop overnight to clear the gum from the highlights to my
satisfaction. My old darkroom had a separate paper drying area that
was not climate controlled - it was in my garage. I pretty much got
away from doing any gum between June and September because of the
difficulties. Now that my new darkroom is complete and the whole
shebang is climate controlled, I can print gum year-round.
Clay
> 8. Paper will keep, coated, for even 70 days in the ice box, or 3
> days at
> room temp. If paper is dried at room temp high enough to dehydrate
> coating,
> dark reaction does not occur and consequently shelf life is very good.
> (Katharine, with the relative humidity in Montana being so low, this
> is why
> I could use sensitized paper for so long without dark reaction ruining
> it
> there. Here in MN where it is dripping, this is not the case).
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