Backing: PETAdhesion: SiliconeCertificates: ROHSModel Number: HC-910Type: Release FilmColor: TransparentThickness (mm): 0.075Releasing power: <20g/inTensile strength: >20Kg/inLinking number: < 2n/rollShrinkage: < 10mmLength (m): 1000It’s with PET film as the basic and coated with releasing agent. The surface is smooth, clean and even; no wrinkle, rends, break, air bubble, pinhole, etc. The releasing effect of this product is excellent.