At S.K. Enterprises, you can avail top grade optimum quality thermal polyester films. These have three layers that are laminated by an adhesive. The intermediate layer of skin is shielded from environmental elements like oxygen and moisture by the top and bottom skin layers. The middle layer, known as the active layer, is what gives the film its characteristics like flexibility and heat resistance. Thermal polyester films can be used in a wide temperature range and have strong heat resistance. They have good dimensional stability and are stretchy as well. Our products aid in keeping heat from escaping.