This 1000' clear roll of Polyguard Continuous Film Sleeving from Lineco is made to store and protect 70mm negatives or transparencies from handling and outside contamination. The 2 mil archival polypropylene material provides high diffusion while retaining light transmission. The sleeves are archival, which means they're suitable for long-term storage. This roll comes unperforated.
Polypropylene has high diffusion while retaining clarity