Protective film products are widely used in people's lives, and there are many kinds of protective film products, which can be divided into many kinds according to the different raw materials. Xiao Rui will analyze the advantages and disadvantages of PE protective film for everyone. The main raw material of PE material is LLDPE, which is soft and malleable. The elongation of PE film varies from 150-300%, and different effects can be achieved for different purposes. In contrast, pet protective film has no ductility, but it is not easy to deform and has good hardness. The main advantages of PE protective film are: excellent temperature resistance, clean and flat surface, high transparency, low thermal shrinkage, excellent flexibility, good release effect, fast pressure resistance, high pressure and high temperature pressing, no residue, no fragmentation, no glue residue, strong adhesion, strong tension resistance and aging resistance. But also has the advantages of low price, softness, good ductility, environmental protection and no pollution. Usually, such products produced by PE protective film manufacturers have passed the ROHS environmental pollution test of the European Union. Due to its high flatness, good adhesion to smooth plastic surface and good high-temperature stability, PMMA protective film can be molded with plates at high temperature to protect the surface, and is easy to peel off. it is generally suitable for product surface protection in aluminum-plastic plates, nameplates, metal surfaces, plastic plate surfaces, building decoration materials, polyester furniture, stone, stainless steel, automobile interiors, aluminum alloys, plexiglass, electronics, household appliances, IT and other industries. The specific products are as follows: the disadvantages of PE protective film are: poor weather resistance, this material is not suitable for high temperature, and the temperature is generally within 60 degrees. So it also shows a problem that this product can't be used at high temperature.