Made from a stable polyester material and featuring a clear microporous coating, Transparency Film from Inkpress Media will allow you to create screen positives and negatives using dye- or pigment-based inks. The paper measures 7 mil thick and is useful for creating overhead projections as well as digital negatives for advanced photographic workflows. Additionally, it features a glossy surface.
This transparency film is available here as a 5-pack of 8.5 x 11″ sheets.