PET release film is also called PET silicone oil film. Coating a layer of silicone oil on the surface of PET film to reduce the adhesion of the PET film surface and achieve the effect of releasing. PET release film can be divided into single-sided release film and double-sided release film. According to the release force, it can be divided into easy release film, medium release film, and tight release film.

The full name of PE is Polyethylene. PE release film is the most widely used polymer material in the world today. PE release film is divided into high density polyethylene, medium density polyethylene and low density polyethylene.