Quote Originally Posted by Rlibersky
One thing I have noticed when buying print most are mounted on the same mat board that wraps the print. Is there a reason for this rather, then using archival foam board which doesn't deform as much in humid conditions.
Again, when using cotton rag, most of this is the same color (natural, almost pure white) and galleries and museums like to see mat and mount in cotton rag. This makes the image more valuable because of the real and perceived archival stability in the presentation. Therefore the mount and overmat will be the same color by default. I would never use foam core as a mount. I do, however, use it as backing behind the mount to keep out contaminants and humidity.