Collection Protection Supplies
 
All three of our poly materials have passed the Photo Activity Test. This test was run by an independent lab certifying that our poly materials are safe for long-term storage.
POLYETHYLENE
 (PE) is a by-product of natural gas. It is a soft clear material that has some give to it. It has excellent contact clarity. 3mil is by far the most popular thickness. Our polyethylene is made from 100% pure-virgin material. Use for Long-term storage.
POLYPROPYLENE (PP) is a crystal-clear, high sheen, crisp material. We use bi-oriented polypro which means that when the material is made, it is stretched in both directions so that in time it will not "pucker" (decreasing the clarity). Use for Long-term storage.
ARCHIVAL POLYESTER (PET) (Mylar) is an inert material of the highest clarity. We use DuPont inert Melinex® or a suitable equivalent. Polyester (Mylar) will not discolor, damage, or adhere to items placed inside it. It is a sturdy film that beautifully displays, timelessly protects, and gives extra support to fragile documents. Used by the Library of Congress. Indefinite Storage.
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