Uses
•Because PET is an excellent gas barrier material, plastic bottles made from PET are widely used for soft drinks.
•Biaxially oriented PET film (often known by one of its trade names, "Mylar") can be aluminized by evaporating a thin film of metal onto it to reduce its permeability, and to make it reflective and opaque (MPET).
•These properties are useful in many applications, including flexible food packaging and thermal insulation such as "space blankets".