PET polyethylene terephthalate Ertalyte®

Ertalyte® Key Facts

Ertalyte® is an unreinforced, partly crystalline thermoplastic polyester based on polyethylene terephthalate (PET). It is characterized as having excellent wear resistance and a low coefficient of friction, together with high modulus, low creep and superior dimensional stability. Ertalyte’s specific properties make it especially suitable for the manufacture of mechanical precision parts which are capable of sustaining high loads and wear conditions.  Ertalyte’s continuous service temperature is approximately 10% higher than acetals, and its melting point is almost 150°F higher.

In addition, Ertalyte® PET offers good strength combined with good chemical and abrasion resistance. Its low moisture absorption enables its mechanical and electrical properties to remain virtually unaffected by ambient moisture. These qualities, combined with FDA compliance, make Ertalyte® PET an excellent candidate for certain food contact applications.

Key Benefits of Ertalyte®

  • High strength and rigidity
  • Low moisture absorption
  • Superior chemical resistance compared to nylon and acetal
  • Good abrasion resistance
  • FDA compliant (Regulation #177.1630)
  • Good electrical properties
  • Excellent dimensional stability
  • Weather resistance
  • Radiation resistance

Applications of Ertalyte®

  • Bearings
  • Bushings
  • Seals
  • Spacers
  • Thrust washers
  • Rollers
  • Guides
  • Insulators
  • Food contact parts
  • Pump components
  • Valve parts

Physical Properties of Ertalyte®

Ertalyte Properties