Pina Zangaro Landscape Polypropylene Sheet Protectors 11x17", Pack of 10 Sheets.
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Polypropylene Sheet Protectors... Our classic welded polypropylene sheet protectors have become the industry standard for quality. Packed in tens in a metallic, reusable bag. Archival quality heavy-duty .0045 polypropylene.
Inert, unplasticized, heat resistant and chemically stable. 10 pt. black acid and lignin-free paper. Both plastic and paper pass the Photographic Activity Test (PAT) and meet all ANSI requirements for archival storage.