PET – Polyethylene terephthalate


PET is highly suitable for use in parts that are subjected to great loads and wear. Because of its good mechanical, electrical and heat-related properties, PET is used in a wide range of applications, particularly when a low coefficient of friction and good precision, wear‑resistance and load-bearing abilities are required. The material is based on a homopolymer. We deliver PET as plastic sheets, rods and as hollow rods.

Physical properties
  Value Unit Test method
Specific gravity 1.36 g/cm3 DIN EN ISO 1183
Average molecular mass N/A
Water absorption, 24/96 h (23 °C) 0.02/0.03 % DIN EN ISO 62
Weather-resistance poor
Combustibility HB UL 94 DIN EN ISO 527-2
Food safety yes
Mechanical properties
  Value Unit Test method
Modulus of elasticity 3100 MPa DIN EN ISO 527-2
Tensile strength 79 MPa DIN EN ISO 527-2
Elongation at break 5 % DIN EN ISO 527-2
Tensile strength at break 10 % DIN EN ISO 527-2
Flexural modulus 3200 MPa DIN EN ISO 178
Flexural strength 121 MPa DIN EN ISO 178
Compressive modulus 2700 MPa EN ISO 604
Compressive strength, 1%/2% 19/35 MPa EN ISO 604
Impact strength (Charpy) 81 kJ/m2 DIN EN ISO 179-1eU
Notch impact strength (Charpy) 4 kJ/m2 DIN EN ISO 179-1eA
Notch impact strength (Izod) kJ/m2 DIN EN ISO 180/2A
Toughness (ball pressure) 175 MPa ISO 2039-1
Toughness (Shore D) N/A
Wear-resistance N/A
Coefficient of friction (against steel) N/A
Thermal properties
  Value Unit Test method
Glass-transition temperature 81 °C DIN 53765
Melting point 244 °C DIN 53765
Operating temperature (instantaneous) +170 °C
Operating temperature (continuous) 110 °C
Operating temperature (minimum) N/A
Thermal expansion coefficient, 23–60 °C 8 10-5 K-1 DIN EN ISO 11359-1;2
Thermal expansion coefficient, 23–100 °C 10 10-5 K-1 DIN EN ISO 11359-1;2
Specific heat capacity 1.2 J/(g×K) ISO 22007-4:2008
Thermal conductivity 0.31 W/(m×K) ISO 22007-4:2008
Electrical properties
  Value Unit Test method
Surface resistivity 1014 DIN IEC 60093
Resistivity 1014 Ω×cm DIN IEC 60093
Dielectric strength N/A
CTI value 600 V DIN EN 60112
Optical properties
  Value Unit Test method
Light transmittance N/A
Refractive index N/A
Optical errors N/A
Abrasion-resistance, 100 rotations with 500 g N/A

Additional downloads

Delivery selection hollow bars, plastic sheets, plastic rods
Specific gravity 1.36 g/cm3
Service temperature N/A … 110 °C
Price category €€ (€8–25/kg)

Special properties

  • good mechanical strength, rigidity, and hardness
  • extremely high creep-resistance
  • low coefficient of friction
  • excellent wear-resistance
  • good chemical-resistance
  • suitability for the food industry
  • excellent electrical insulation properties


components for the electronics industry, bearings, bushings, cogs, controls

Standard colours

white, black

Special colours

in minimum order quantities

Premade pieces


Commonly known brands