Greetings,(posted 8180 days ago)From your description it sure does sound like the dry mount press is the culprit, but you don't mention the display conditions. If these prints are bieng subjected to a large amount of UV that could account for the discoloration. Not only does sunlight contain UV, but flourescent lighting also has a fair amount of UV. Other than trying another mounting method, you might consider toning your prints. Selenium or one of the brown toners should help. Agfa's Sistan is supposed to help prints from fading too. Last resort, do yourself a favor and switch to fiber. The papers and surfaces are far superior.
Regards,