Polyester film is a high-performance film made from polyethylene terephthalate (PET) resin. The Polyethylene Terephthalate (PET) resin is made from Ethylene Glycol and dimethyl terephthalate (DMT). The PET resin used is of a similar intrinsic viscosity (IV) to fiber grade resin, used to produce polyester fibers, but has a higher purity. PET resin is made in special grades for specific film types and often contains slip modifiers.
In comparison with other common plastic films, polyester film is characterized by high tensile strength, excellent dimensional stability, low moisture absorption, good retention of physical properties over a fairly wide temperature range (-70° to 150°C), excellent electrical properties, and good optical clarity. Because of its higher price relative to PVC, polyethylene, and polypropylene film, polyester film is generally considered a specialty film among all plastic films; however, markets of considerable volume have developed that require this strong, dimensionally stable film. Prices are higher than most commercial plastic films primarily because the manufacturing process is much more costly due to the need for an orientation step. (Most polypropylene film is also oriented.Tear resistance, Easy to use
Long life.

Polyester film is a high-performance film made from polyethylene terephthalate (PET) resin. The Polyethylene Terephthalate (PET) resin is made from Ethylene Glycol and dimethyl terephthalate (DMT). The PET resin used is of a similar intrinsic viscosity (IV) to fiber grade resin, used to produce polyester fibers, but has a higher purity. PET resin is made in special grades for specific film types and often contains slip modifiers.
In comparison with other common plastic films, polyester film is characterized by high tensile strength, excellent dimensional stability, low moisture absorption, good retention of physical properties over a fairly wide temperature range (-70° to 150°C), excellent electrical properties, and good optical clarity. Because of its higher price relative to PVC, polyethylene, and polypropylene film, polyester film is generally considered a specialty film among all plastic films; however, markets of considerable volume have developed that require this strong, dimensionally stable film. Prices are higher than most commercial plastic films primarily because the manufacturing process is much more costly due to the need for an orientation step. (Most polypropylene film is also oriented.Tear resistance, Easy to use
Long life.