__________________________________________________ POLYPROPYLENE SHEET PROTECTORS (for use in Screwpost Book Mechanisms) are welded and have become an industry standard for quality. Packed 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. __________________________________________________ FLEX-HINGE POLYESTER SHEET PROTECTORS (for use in Screwpost Book Mechanisms) have a flexible black polyester hinge that adheres the polyester sheet and liner to a perforated binding strip. They combine the beautiful clarity of polyester with perfect lay-flat hinging making them an ideal sheet for use in screwpost books. Further, because the black liner sheet is attached to the sheet protector at the hinge and static electricity holds the polyester together, we’ve minimized the risk of art slipping out the bottom of the sheet. __________________________________________________ FOLDED POLYESTER SHEET PROTECTORS (for use in Ring Binder Mechanisms) represent excellent clarity and excellent value. Protect your artwork and documents with archival construction. Non-stick finish prevents adhesion to artwork. Scratch-resistant material makes artwork or documents look better longer. Thicker, blacker liner sheet provides more support for fragile or thin artwork. Packed in a metallic, reusable bag. Archival grade DuPont polyester (polyethylene terephthalate). High transparency and tensile strength, non-yellowing at ambient temperatures, chemically and dimensionally stable, resistant to most chemicals, moisture and abrasion. Approved by the Library of Congress for archival storage. 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. __________________________________________________ Glossary: The term "Portrait" refers to a vertical layout, and the term "Landscape" refers to a horizontal layout. __________________________________________________ All items are in-stock, unless otherwise noted on item. |