What is polyester film?

Polyester film, is a polymer resin of the polyester family. Sometimes known as PET (polyethylene terephthalate), it is also commonly referred to by some trademarked brand names such as Mylar® brand, Melinex ®, and Grafix’s own DuraLar™. Polyester is the polymer name, and Mylar® et al are brand names, for essentially the same thing. Check out our DuraLar and other Polyester Film pages for more information.