Polytetrafluoroethylene (Ptfe)

Teflon (PTFE) is a high-performance, semi-crystalline thermoplastic that can be used in a variety of applications. It is one of the most chemically-resistant plastics available and has one of the widest temperature ranges, -400°F (-240°C) to 500°F (260°C). It also has excellent insulation properties for thermal and electrical applications. Teflon has a very low coefficient of friction, making it naturally slick and resistant to sticking and bonding. Its mechanical properties are low compared to other high-performance plastics but can be improved by the addition of fillers such as glass fiber, carbon, graphite, molybdenum disulfide, and bronze.


  • High chemical resistance
  • Low and high-temperature capability
  • Resistance to weathering
  • Low friction
  • Electrical and thermal insulation
  • Anti-stick surface

Common Applications

  • Seals and gaskets
  • Packing materials exposed to chemicals
  • Bushings, bearings, and slide bearings
  • Piston rings
  • Wire, cable, and electrical insulation

PTFE | Teflon Properties Chart

Tensile strength psi D638 3,350
Flexural Modulus 10^5 psi D790 0.5-0.9
Impact Strength, Izod ft-lbs/in of notch D256 3.5
Heat deflection temperature @ 264 psi °F D648 132
Max Service Temp – Long Term °F UL94 500
Coefficient of thermal expansion 10^5 in/in-°F D696 5.5-8.4
Elongation % D638 300

Values may vary. Please ask your Erie Industrial Plastics representative for more specific information.

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