Looking for the superior clarity of polyester in a sheet that will lie flat in a screwpost book? Look no further than the Pina Zangaro 12.5x9.5 Flex-Hinge Polyester Sheet Protectors. These top-and-bottom loading 100% archival sheets are much clearer than polypropylene sheets and they lie perfectly flat thanks to a hinged binding edge. Made of inert, unplasticized, heat resistant and chemically stable archival quality, heavy-duty DuPont polyester. Sold in packs of 10 in a protective metallic resealable bag.
The 12.5x9.5 Flex-Hinge Polyester Sheet Protectors are made from DuPont polyester, an archival grade material, and are complete with a non-stick finish that will not hurt your artwork as well as not yellow with age. Both the plastic and paper pass the Photographic Activity Test (PAT) and meet all ANSI requirements for archival storage.