PET hard sheet has good toughness and is a new material developed in recent years. 
Because of its excellent toughness, high strength, high transparency, recycling, easy to burn, combustion does not produce harmful gases, belongs to environmental protection materials and gradually banned PVC, but the price is high. 
Suitable for high-grade plastic products, plastic foam shells in Europe and the United States generally require the use of PET materials, but its high hot melting point, which brings great difficulties to high cycle packaging. 
In order to solve this problem, people compound a layer of PVC film on the surface of PET, called PETG, but the price is higher. Mainly used in electronics, food, toys, color box windows, collar Support, shoe packaging, etc.
PET film is used successfully in a wide range of applications, due to its excellent combination of optical,physical, mechanical, thermal, and chemical properties, as well as its unique versatility.