What are the differences between PET release film and PE film

Release film refers to a film whose surface can be distinguished. Release film does not have viscosity or slight viscosity after contacting specific materials under limited conditions.
PET protective film is also known as high-temperature resistant polyester film. It has excellent physical and chemical properties, dimensional stability, transparency, and recyclability, and can be widely used in magnetic recording, photosensitive materials, electronics, electrical insulation, industrial films, packaging, and other fields. It can be made into a liquid crystal protective film for mobile phones, a liquid crystal television protective film, mobile phone buttons, etc.
PE protective film is based on special polyethylene (PE) plastic film, and can be divided into high-density polyethylene protective film, medium density polyethylene, and low density polyethylene according to different densities. Polyethylene protective film is a simple polymer organic compound that is widely used in the world today. Its advantage is that the protected product is not contaminated, corroded, or scratched during production, processing, transportation, storage, and use, protecting the original smooth surface, improving product quality and market competitiveness.
The mechanical properties of PET protective films are excellent, and their strength and toughness are better among all thermoplastics. The tensile strength and impact strength are much higher than those of ordinary films. PE protective film is a packaging film with relatively complete performance. Good transparency and luster; Good air tightness and aroma retention; Moderate moisture resistance, reduced moisture permeability at low temperatures.