The surface of PET isolation film is smooth and bright, with high cleanliness, no wrinkles, particles, bubbles, pinholes, scratches, color lines and other defects.Excellent physical and mechanical properties, small thickness tolerance, uniform transparency, low heat shrinkage, good tensile strength.The release material coating thickness on the surface of PET isolation film is uniform, the peeling force runout tolerance is small, and the residual bonding rate (SAS) is high. It can be cut into rolls or reels, and has little dependence on storage temperature, storage humidity, and storage time.