The full form of PET is "Polyethylene Terephthalate". It is a type of polyester that is widely used in the production of plastic bottles, films, fabrics, and other products. PET is a thermoplastic polymer resin of the polyester family and is made by combining terephthalic acid or its dimethyl ester with ethylene glycol. It is known for its strength, flexibility, and chemical resistance, making it an ideal material for a variety of applications. PET is commonly recycled and has the digit 1 (♳) as its resin identification code (RIC) .