What is PET?

PET (Polyethylene Terephthalate) is the most commonly used plastic in the world, you can find it in everyday consuming objects, it is a plastic polymer obtained by a process of polymerization of terephthalic acid and monoethylene (oil base). It is a linear polymer with a high degree of crystallinity and thermoplastic in behaviour, which makes it suitable to be transformed by extrusion, injection, injection-blow moulding and thermoforming.

It presents these relevant features:

Crystallinity and transparency, while admitting different colours.

Good resistance to pressure.

High wear resistance.

Very good coefficient of sliding.

Good chemical resistance.

Good thermal properties.

Very good barrier to CO2 and acceptable barrier to O2 and humidity.

Compatible with other barrier materials to improve the quality as a whole barrier containers and thus allow use in specific applications.

Fully recyclable.

Approved for use in products that must be in contact with food .

The physical properties of PET and its ability to meet various technical specifications have been the reasons why the material has reached a significant development in the production of textile fibres and production of a wide variety of containers, especially in the production of bottles, plates, strips and sheets.



  • Carbonated beverages
  • Mineral waters
  • Oil
  • Juices, teas and isotonic drinks
  • Wines and spirits
  • Detergents and cleaning products
  • Cosmetic products
  • Sauces and other foods
  • Chemicals products and lubricants
  • Products for agricultural treatments



  • Food containers
  • Blisters
  • Films (sheet)
  • Films “High-Tech”
  • Audio Video
  • Photograph
  • Electrical appliances
  • Electronic
  • Special packages



  • Tubes
  • Profiles
  • Frame
  • Walls
  • Construction
  • Moulded parts


More information about the fascinating world of PET here http://es.wikipedia.org/wiki/Tereftalato_de_polietileno#Historia