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Polypro Protective Sleeve is a cost effective archival alternative to Mylar.
Photofile's Polypro Protective sleeves are made of the highest quality polypropylene available. State of the art manufacturing process ensures that edge folds lie flat, no seal required! The sleeves are recognized by the National Standards Institute as "particularly suitable for photograph film" since it is "generally inert, unplasticized and has good chemical stability".
