rachaelm5's avatar

The matboard is archival - I use Crescent matboard for nearly everything, and it is described by the manufacturer like this: "the cream core is made of unprinted, reclaimed wood pulp fibers and, along with the backing paper, is buffered and acid free". The backing can be hit or miss, as I use mat scraps, Elmer's foam board, or chipboard (like you'd find on the back of a drawing pad). The adhesive tape that touch the photo paper and attaches it to the matboard are considered archival and acid-free.

I check my older print stock from time to time, and I have only seen a very small bit of yellowing around the areas of the fibre and masking tape that holds the mat together, even on items that are 20 years old. I store my matted prints in my basement, which I keep cool and dry year-round.

I have not accounted for all environmental factors, though. I had not though about what effect smoke might have on any artwork, and as such, I couldn't say if any of the materials I use - matboard, backing, adhesives, or the print paper itself - would absorb such elements. It's better-protected in a plastic art bag or in a frame than it would be without it, but I am not sure what specific differences this might make on the longevity of the prints under adverse or strongly adverse conditions.

Honor-ra's avatar

According to my personal evidence and asking at the local art museum. As long as all framing and mounting are archival acid free including backing materials, you can get a pretty good run of the 8o-100 years after that it is only aided by robust climate control of a vault. Of course that is the best storage option but then you can't show stuff off. And until I can get works framed I usually just store them in a acid free box with the wrap still on. *mutters need more wall space* Bookshelves and art are not compatible space sharers *sigh*

rachaelm5's avatar
LOL - I understand the bookshelves vs art space problem. Almost have to rotate things seasonally, or figure out weird new configurations for bookshelves in order to free up wall space...