Re: Gum Humidity Question
What do you use to coat the damp paper. Hake? Foam Roller? Spray? Candace Spearman ----- Original Message ----- From: "Keith Gerling" <Keith@GumPhoto.com> To: <alt-photo-process-l@usask.ca> Sent: Wednesday, September 27, 2006 3:47 PM Subject: RE: Gum Humidity Question > Tom Sobota mentions a problem that I find most problematic about a drier > environment: the tendency of dry paper to gulp down emulsion faster than it > can be applied. For what it is worth, I thought I would pass along a short > description of my own procedure when working with paper. I have a pretty > anarchistic approach to gum printing. I can tolerate most kinds of mistakes > and screw-up and have been known to employ belt sanders and propane torches > to remove gum in drastic situations and STILL end up with a satisfactory > print. However the own thing that I *cannot* tolerate is lack of > registration, and paper tends to shrink and expand dramatically depending > upon humidity. I have placed a small mist vaporizer in a box where I keep > my paper when I am working on it. Before I coat any emulsion, the paper > goes in this box until it gets as relaxed as a piece of over-cooked > pappardelle. Really really damp. The emulsion goes on with no problems. > Then the paper goes into my tiny darkroom which is constantly dried by means > of a dehumidifier. It turns bone dry quickly - and shrinks nearly a > centimeter in the process. Then is goes BACK into this rainforest of a box > to get soggy again, expand, and I usually make the exposure while the paper > is still quite damp. This highly humid paper clears more consistently than > paper under drier conditions. I've left coated paper in this box for a day > with no ill effects. > > Keith > > www.gumphoto.com > > >
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