PET laminating film performance 1) mechanical strength, the tensile strength of the polyethylene of about 5 to 10 times, so 12mic PET film has been widely used, 9mic of thin PET film is started, in addition, a polyester film also has a very high and high impact resistance and other advantages. 2) heat resistance, melting point 260 ℃, softening point of 230 ~ 240 ℃, even with the biaxial stretching process, at high temperatures, the heat shrinkage rate is still very small, extremely excellent dimensional stability, high temperature long heating time still affect its performance. 3) oil resistance, chemical resistance, and not dissolve, good acid resistance to corrosion, resistance to organic solvents, oils erosion, but are susceptible to deterioration in contact with alkali. 4) have excellent gas barrier properties and good good odor barrier properties. 5) less water vapor barrier properties of polyethylene and polypropylene. 6) high transparency, light transmission rate of 90% or more, good gloss, good printing performance. 7) prevent ultraviolet through the poor. PET gloss laminating film is its greatest feature high strength, scratch resistance, may be at a relatively high temperature lamination film, so they can provide better coating adhesion along with good post processing.