Release films are made from PET (Silicone coated), PTFE, ETFE, PP, HDPE. . The primary characteristic for a release film is good releasability. The challenge is to incorporate several other properties along with releasability, to produce a plastic release suitable for a given production process.
Mitsui manufactures TPX™ release films under the brand name Opulent™. TPX™ release films offer excellent releasability along with heat resistance, gas permeability and are environment friendly.