Pvc material is not silicone material. They are two different materials.

PVC  material, the full name is Polyvinylchloride, the main component is polyvinyl chloride, and other ingredients added to enhance its heat resistance, toughness, ductility and so on. The top layer of this surface film is lacquer, the main ingredient in the middle is polyvinyl chloride, and the lowest layer is the back coat adhesive.

Silicone material is a kind of high activity adsorption material, which is an amorphous substance, its chemical formula is mSiO2·nH2O; it does not react with any substance except strong alkali and hydrofluoric acid, is insoluble in water and any solvent, and is non-toxic and tasteless. Chemically stable.