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PETP (Thermoplastic Polyester)

Sustadur® PETP (Polyethylene Terephthalate) is a highly crystalline thermoplastic polyester.

It has high mechanical strength, good resistance to creep, excellent dimensional stability, abrasion resistance and excellent gliding properties especially very smooth surfaces such as aluminium.

Although it absorbs very little moisture Sustadur® PETP does suffer from hydrolysis and should not be used in aqueous applications at temperatures above 70ºC or steam environments.

It offers superior wear resistance to Sustarin® C Acetal and is an excellent material for close tolerance parts.

Important Note: Due to Sustadur® PETP’s high crystalline structure it is notch sensitive so therefore care needs to be taken when used in possible impact or shock loading applications.

The specific properties of Sustadur® PETP virgin crystalline PET make it especially suited to the manufacture of mechanical precision parts which have to sustain high loads and/or are subject to wear.


Proven Industry Performer - High-Grade And High-Strength Technical Parts

Mechanical Engineering, Electronic Industry, Ship Building Industry, Materials Handling Industry,

Food Processing Industry




  • Precision Gears and Bearings

  • Components for Precision Mechanisms

  • Thrust Washers

  • Pump Components

  • Sliding Elements

  • Levers Handles

  • Control Discs

  • Cams




  • High tensile and mechanical strength, stiffness and hardness

  • Good resistance to high energy radiation (Gamma and X-rays)

  • Physiologically inert (suitable for food contact)

  • Good electrical insulating properties

  • Low coefficient of thermal expansion

  • Excellent wear resistance (Comparable / better than Nylon grades)

  • Better resistance to acids than Nylon and Acetal

  • Very good dimensional stability (Better than Acetal)

  • Good dimensional stability

  • Good sliding properties

  • Very good creep resistance

  • High wear resistance

  • Good machinability

  • Excellent stain resistance

  • Low moisture absorption

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