Print File uses only the finest quality archival polypropylene and polyethylene for maximum protection of your delicate work. Print File's archival preservers are pH neutral, containing none of the plasticizers, catalysts or solvents found in vinyl. Data from independent laboratory tests detect no chlorine, sulfur or peroxide in the materials.
In addition, all Print File materials have passed the Photographic Activity Test (PAT) performed by the Image Permanence Institute at the Rochester Institute of Technology. This is a predictive test of interactions between storage enclosures and photographic images. This test is an ANSI (ANSI/NAPM IT9.16 - 1993) and ISO (ISO 10214 - 1992) Standard.