Sorry, I'm sure this has been asked multiple times but I can't find an answer via search.
I have about 400 pieces of OA currently stored in Archival Quality, PH Neutral, Acid Free Filexe? Art Binders. (11x17", 13x19" & 18x24") Usually I place one piece of art on each side of each page so I'm not sure if I'm putting 2x too much art in each binder and this is causing my problem) But I've started to notice that some of the pieces (especially near the top of the binders) are starting to g