White polyester film

White polyester film is an opaque white biaxially oriented polyethylene terephthalate (PET) film manufactured by compounding high-grade polyester resin with white color pigments through precision biaxial stretching technology. It features excellent light blocking performance, high whiteness, uniform color dispersion, outstanding dimensional stability, strong tensile strength and reliable electrical insulation properties. This white polyester film also delivers good chemical resistance, thermal stability and excellent printability, maintaining consistent color appearance and mechanical performance under temperature fluctuations and long-term use. It is widely applied in self-adhesive label substrates, name cards, whiteboard films, printing base materials, electrical insulation, light-shielding components, packaging materials and graphic arts applications. We offer a full range of thickness and width specifications, and support customization of surface finish, roll length, whiteness grade and special functional treatments to meet your specific application requirements.