PET is an unreinforced, semi-crystalline thermo-plastic polyester derived from polyethylene terephthalate. Its excellent wear resistance, low coefficient of friction, high flexural modulus, and superior dimensional stability make it a versatile material for designing mechanical and electro-mechanical parts. Because PET has no centerline porosity, the possibility of fluid absorption and leakage is virtually eliminated. Polyethylene terephthalate (sometimes written poly(ethylene terephthalate)), commonly abbreviated PET, PETE, or the obsolete PETP or PET-P, is the most common thermoplastic polymer resin of the polyester family and is used in fibres for clothing, containers for liquids and foods, thermoforming for manufacturing, and in combination with glass fibre for engineering resins. Compared to other polymeric films at a standard thickness of 25 micron, PET film has a good balance of properties, which allows larger operating windows for temperature and tension controls. PET consists of polymerized units of the monomer ethylene terephthalate, with repeating (C10H8O4) units. PET is commonly recycled, and has the number “1” as its Resin Identification Code (RIC). Screen guards today come in three varieties: PET film, TPU (polyurethane), and the undisputed leader – tempered glass. Let’s see how the three screen protectors work and what they offer. PET (polyethylene terephthalate) is a type of plastic available in several variations. … The feel is also not as good as the glass. PET, which stands for polyethylene terephthalate, is a form of polyester (just like the clothing fabric). It is extruded or molded into plastic bottles and containers for packaging foods and beverages, personal care products, and many other consumer products.