Allmän fakta

Polytetrafluoroethylene

Shortening: PTFE

Color: White

Common uses: Electrical applications in aircraft, robots, electrical machines, gaskets, pipes, filters, self-lubricating bearings, coating in pans, foil, surface coating in chemical equipment, electrical insulation material, etc.

Benefits

  • High chemical resistance.
  • Not attacked by acids, bases and most organic solvents.
  • Withstands up to + 260 ° C continuously.
  • Tough at low temperatures down to -160 ° C. • Lowest friction of all plastics.
  • Not degraded by UV radiation. • Not attacked by microorganisms.
  • Good electrical and dielectric properties.
  • Very low water absorption.

Restrictions

  • High melt viscosity makes the material difficult to work with.
  • Poor creep resistance.
  • High density relative to other plastics.
  • Attacked by molten alkali metals, fluorine gas, oxygen difluoride and chlorine trifluoride (except PTFE).
  • Low abrasion resistance.
  • Limited load capacity.

Specific properties

This material has been specifically developed to, in addition to PTFE’s advantages, offer high rigidity, high strength and high dimensional stability even at high temperatures.