Polyester film is known for several characteristics which are unique and incomparable among many components in today's industries. This type of component is made from polyethylene terephthalate or PET. Polyester film is popular for its high tensile strength. It also has dimensional and chemical stability ideal for many industrial functions. Its reflectivity along with aroma and gas barrier makes it an even more versatile component. Polyester film is also good for electrical insulation.