PTFE

Fluoroplastics –

PTFE

Polytetrafluoroethylene has several good qualities, including excellent chemical strength and heat resistance. It has a lower coefficient of friction than other polymers do, and its electrical conductivity is good. Because of its softness, PTFE’s wear resistance is limited. Therefore the material is best suited to applications with low load and speed levels. The material is best known under the trade name Teflon®, registered by DuPont. We deliver PTFE as plastic sheets, rods and foils, and as hollow rods.

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Physical properties
  Value Unit Test method
Specific gravity 2.16 g/cm3 DIN EN ISO 1183
Average molecular mass N/A
Water absorption, 24/96 h (23 °C) – % DIN EN ISO 62
Weather-resistance good
Combustibility HB UL 94 DIN EN ISO 527-2
Food safety no
Mechanical properties
  Value Unit Test method
Modulus of elasticity N/A
Tensile strength 22 MPa DIN EN ISO 527-2
Elongation at break N/A
Tensile strength at break 220 % DIN EN ISO 527-2
Flexural modulus N/A
Flexural strength N/A
Compressive modulus N/A
Compressive strength, 1%/2% 5 / N/A MPa EN ISO 604
Impact strength (Charpy) N/A
Notch impact strength (Charpy) N/A
Notch impact strength (Izod) – kJ/m2 DIN EN ISO 180/2A
Toughness (ball pressure) N/A
Toughness (Shore D) 55 Sh D DIN EN ISO 868
Wear-resistance N/A
Coefficient of friction (against steel) 0.06 μ
Thermal properties
  Value Unit Test method
Glass-transition temperature -20 °C DIN 53765
Melting point N/A
Operating temperature (instantaneous) +260 °C
Operating temperature (continuous) 260 °C
Operating temperature (minimum) -200 °C
Thermal expansion coefficient, 23–60 °C N/A
Thermal expansion coefficient, 23–100 °C 13 10-5 K-1 DIN EN ISO 11359-1;2
Specific heat capacity N/A
Thermal conductivity N/A
Electrical properties
  Value Unit Test method
Surface resistivity 1016 Ω DIN IEC 60093
Resistivity 1017 Ω×cm DIN IEC 60093
Dielectric strength 80 kV/mm DIN EN 60243-1
CTI value N/A
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 plastic sheets, plastic rods, membranes, hollow bars
Specific gravity 2.16 g/cm3
Service temperature -200 … 260 °C
Price category €€€ (€26–50/kg)

Special properties

  • extremely low coefficient of friction
  • almost total resistance to chemicals
  • excellent electrical properties
  • broad service temperature range
  • low water absorption
  • good weather-resistance

Applications

chemical industry, linings and components for applications requiring good chemical-resistance

Standard colours

white

Premade pieces

enquire

Commonly known brands

PTFE G400, TECAFLON® PTFE, Teflon®

Further information

Also available in food grade.