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Plastic enclosures of archival quality may be made of polyester, polypropylene, or polyethylene. They should not be coated or contain plasticizers or other additives. Polyester is the most inert and rigid of the three. It generates static electricity that can attract dust, and it is expensive. Polyester enclosures should be either DuPont Mylar@ D or ICI Melinex@ #5 16. Polypropylene is almost as rigid and strong as polyester when in sleeve format, but is soft when used for ring binder storage pages. Polyethylene is the softest, most easily scratched, and least rigid of these plastics.
Products Found: 29
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Mylar & Poly Sleeves
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