A fluoropolymer coated film comprising polymeric substrate film and
fluoropolymer coating on the polymeric substrate film. The fluoropolymer
coating comprises fluoropolymer selected from homopolymers and copolymers
of vinyl fluoride and homopolymers and copolymers of vinylidene fluoride
polymer blended with compatible adhesive polymer comprising functional
groups selected from carboxylic acid, sulfonic acid, aziridine,
anhydride, amine, isocyanate, melamine, epoxy, hydroxy, anhydride and
mixtures thereof. The polymeric substrate film comprises functional
groups on its surface that interact with the compatible adhesive polymer
to promote bonding of the fluoropolymer coating to the substrate film.