What is the difference between PET film and PE film, and what is the difference between PET film and PE film in terms of function and use? Before understanding the difference between PET and PE protective film, it is important to understand their respective features and uses separately.

　　PET protective film is also known as high temperature resistant polyester film. It has excellent physical properties, chemical properties and dimensional stability, transparency, recyclability, and can be widely used in magnetic recording, photosensitive materials, electronics, electrical insulation, industrial films, packaging decoration and other fields. It can be produced into cell phone LCD protection film, LCD TV protection film, cell phone keypad, etc. Picture

　　PE protective film is based on special polyethylene (PE) plastic film, which is divided into high-density polyethylene protective film, medium-density polyethylene and low-density polyethylene according to the density. PE protective film, the most structurally simple polymer organic compound, is the most widely used polymer material in the world today. Its biggest advantage is that the protected products are protected from pollution, corrosion and scratches during production, transportation, storage and use, and the original bright and shiny surface is protected, thus improving the quality of products and market competitiveness.

　　PET protective film has excellent mechanical properties, its toughness is the best of all thermoplastics, tensile strength and impact strength is much higher than the general film; PE protective film is a more comprehensive performance of packaging film. Its transparency is good and glossy; it has good air tightness and fragrance retention; moisture resistance is medium, and moisture permeability decreases at low temperature.

　　From the above understanding of some basic knowledge of PE protective film and PET protective film, all can clearly know the difference between them. In addition, PE is softer and PET is harder; when picked up and shaken, PE has no rattle and PET has rattle; PE tensile strength is not as strong as PET; PE protective film temperature resistance is generally 60 degrees, while PET protective film can be 120 degrees and above. So when choosing, you have to choose different materials for different products.

　　First of all, PE and PET in this material are single-sided adhesive materials, that is, the lower surface is silicone-coated barrier film that can be removed, while the upper surface is made of PE film or PET film, of which the performance index of PE film is slightly higher than that of PET film, while the D class is double-sided adhesive in the tireless, and the upper and lower surfaces are silicone-coated barrier film.

　　The reasoning is similar, PE, S are single-sided sticky material, the same lower surface is able to reveal the silicone-coated barrier film, the upper surface PE film or fine sand (S), and D class is also double-sided sticky, is the upper and lower are silicone-coated barrier film.