Cars & Driving

  • noun the major advantages of this material are its excellent chemical resistance and its extremely low coefficient of friction; automotive uses are parts where these characteristics are relevant, such as in valve stem seals, friction bearings and joints.


  • A chemically-resistant, waterproof, and heat-tolerant fluorocarbon-based resin with an extremely low coefficient of friction. It has a self-lubricating effect which makes it ideally suited for use in bearings and joints. Its other applications include its use for electrical and thermal insulation. Its abbreviation is PTFE. Much better known as Teflon. Also called polytetrafluoroethylene resin, or tetrafluoroethylene.