Polyethylene Terephthalate [PET]

Polyethylene terephthalate (PET) is a polyester material with a stable, semi-crystalline structure. It is recyclable and resistant to impact, moisture, alcohol, and solvents.

Grades

● Ertalyte™
● Ertalyte™ TX

  • High mechanical strength, stiffness and hardness
  • Very good creep resistance
  • Low and constant coefficient of friction
  • Excellent wear resistance [comparable with or even better than nylon grades]
  • Moderate impact strength
  • Very good dimensional stability [better than polyacetal]
  • Excellent stain resistance
  • Better resistance to acids than nylon or polyacetal
  • Good electrical insulating properties
  • Physiologically inert [suitable for food contact]
  • Good resistance to high energy radiation [gamma and X-rays]
  • PET is sensitive to notches and impact. Internal corners should therefore be rounded to reduce stress concentrations, with a radius greater than 1 mm where appropriate.
  • Chamfering is also recommended to help prevent cracking and edge breakage during machining operations such as turning, drilling, and milling.
  • Heavily loaded bearings (bushings, thrust washers, guides, etc.)
  • Dimensionally stable precision parts (bushings, slideways, gears, rollers, pump components, etc.)
  • Electrically insulating components