100% cotton museum-quality AlphaRag Artcare sheet that features MicroChamber Technology. Meets the regulations of ANSI/ NISO Z39.48-1992 (Permanence of Paper) and passes the Photographic Activity Test (P.A.T.). No optical brighteners are used in the manufacturing process. The MicroChamber products incorporated in this heavy paper effectively remove many harmful compounds such as phenols, ethanoic and methanoic acid, sulfur dioxide, ammonia, and formaldehyde, which contribute to the aging of artwork and other materials.
Paper is AcidFree, LigninFree, Buffered to impart a pH protective backing.




