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Anyone have an explanation why a black and white photo would tend to crease around the edges when dry mounted? I have been dry mounting for 16 years and have never experienced this phenomenon.
Is it creased evenly all around the photo or is it only on 1 or 2 sides?
The only possibility I can think of at the moment would be a mark left from a crease in the release paper that you used on the photo. Sometimes, the release paper lays over the edge of a mounting board and picks up a mark or line in it from the vacuum of mounting a piece. That line can then be transferred onto the next piece that is mounted.
What kind of paper was it printed on? This can make a big difference in how it mounts. Fiber based papers have more tendency to crease, wrinkle, cockle, etc. than RC papers. Most black & white photos are printed on RC paper, the purists use fiber based. Of course, it could also be some form of inkjet printed photo and some of those papers can be more sensitive to creasing. Always find out what kind of photo you are dealing with before mounting.