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Plastics & Elastomers
The material selection platform
Plastics & Elastomers
Polyethylene Terephthalate (PET): A Comprehensive Review

What are the main applications of PET?

Polyethylene terephthalate (PET) is a chemically stable polyester. It finds use in a multitude of applications. These range from food packaging containers to clothing fabrics. Also, used in the manufacture of electronic and automotive components. Explore some key applications of PET here.


Key Applications

Polyethylene Terephthalate is used in several packaging applications as mentioned below:

  • It is an excellent water and moisture barrier material. Plastic bottles made from PET are used for mineral water and carbonated soft drinks.
  • Its high mechanical strength makes PET films ideal for use in tape applications.
  • Non-oriented PET sheets can be thermoformed to make packaging trays and blisters.
  • Its chemical inertness with other physical properties makes it suitable for food packaging.
  • Other packaging applications include rigid cosmetic jars, microwavable containers, transparent films, etc.

PET has wide applications in the textile industry. Polyester fabrics are strong and flexible. They allow few wrinkles and shrinkage over cotton. Polyester fabrics are lightweight, reduced wind, drag-resistant, and more resistant to tears. PET monofilament is mainly used for making mesh fabrics for:

  • screen-printing, filter for oil and sand filtration,
  • bracing wires for agricultural applications (greenhouses etc.),
  • woven/knitting belt, filter cloth, and other such industrial applications.

Polyethylene terephthalate has good electrical insulating properties, high structural and dimensional stability. These benefits allow its use in the electrical and electronics industry. It is an effective polymer to replace die casts metals and thermosets in applications like:

  • electrical encapsulation,
  • solenoids,
  • smart meters,
  • photovoltaic parts,
  • solar junction boxes, etc.

Its outstanding flow characteristics enable design freedom and miniaturization to produce high-performance parts.

PET is employed to manufacture parts in the automotive industry such as:

  • wiper arm and gear housings,
  • headlamp retainer,
  • engine cover, and
  • connector housings.



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