Polyethylene Terephthalate

: The benefits

A thermoplastic resin that is inexpensively made from polythene, terephthalate (“PET”) can be produced in semicrystalline or amorphous form. PET’s semicrystalline and hard semicrystalline forms are more flexible and can withstand stress without breaking.



PET is a durable gas and moisture barrier that makes it an attractive choice for plastic bottles. It can be used for food packaging, microwaveable food tray, and drinks sauces. PET bottles are stronger than glass and can withstand shattering. They also weigh a fraction of the weight of their glass counterparts. This makes PET bottles ideal for personal care and beverages. Made from PET, polyester fibres include everything you need: draperies and tire cord to bed sheets and pillow stuffing. Polyester is also easy to blend with natural fibres, resisting wrinkling and can be used in fabric.

  • PET has a high gas/moisture barrier and is popular for use in plastic bottles to hold drinks, sauces or salad dressings. It can also be used as food packaging and for microwaveable food tray and other food packaging.



PET is safe and has undergone extensive testing. It is therefore not harmful to the human body. The International Life Sciences Institute has also found that PET and the associated compounds can be ingested in a “biologically inert” manner.



The National Association for Plastic Container Recovery estimates that the average household produced 19.1 Kilograms of PET bottles in 2005. PET is very easy to recycle and easily breaks down into its basic monomers. Recycling PET is an ingredient in many products, including packaging, carpet fibres, luggage and insulation.


Environmental Impact

University of Pittsburgh scientists conducted a 2010 study on the environment of biopolymer manufacturing. PET was ranked last for its negative environmental impact based upon factors such as biodegradability and percent recycled. Mass from renewable sources and life cycle health hazards were also considered. (Polypropylene ranked first, followed by high- and low-density polythene polymers and polyhydroxyalkanoate.)