Optical Grade PET Film

Optical grade PET film is produced with strict control over surface cleanliness and internal defects, making it a trusted base for precision optical products. Its smooth, scratch-free surface and uniform structure help prevent bright spots, streaks and coating flaws that can affect image quality. It is widely used as a substrate for hard-coated films, anti-glare and anti-reflective films, prism and diffuser sheets, touch sensors and protective display films. The film stays flat and stable during coating, lamination and heat curing, which supports higher yield in cleanroom processing. Different thicknesses, widths and surface treatments are available, with sample support for qualification testing.