Matting and Framing for Art and Artifacts on Paper
Source: Northeast Document Conservation Center (NEDCC)
Acid migration from adjacent materials is a common source of damage to paper. Over the years, chemically unstable materials used for framing take their toll. These materials include many of the cardboards, tapes, and adhesives used to mount artifacts before framing. Framing is supposed to protect, but if not done properly, it will cause damage instead.