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raw materials

Polytetrafluoroethylene (PTFE)

PTFE is a highly crystalline thermoplastic with excellent sliding properties, anti-adhesive surface, excellent insulation properties, an almost universal chemical resistance and an exceptionally broad temperature resistance. However, this is offset by low mechanical strength and high specific weight compared to other plastics.

PTFE has excellent sliding properties and because of its very close static and dynamic abrasion values, it prevents the “stick-slip effect” however due to its low mechanical strength, PTFE has high sliding abrasion and a tendency to creep (cold flow)

PTFE is compounded with fillers such as glass fiber, bronze, carbon, graphite etc.

Applications – friction bearings, bearing bushes, shaft seals, piston rings, valve seats, gaskets, o’rings, thread seal tapes, seals for hydraulic jacks and cylinders etc.

The main properties of PTFE are

  1. Excellent sliding properties
  2. Good chemical resistance, also to solvents
  3. High corrosion resistance
  4. Broad temperature deployment spectrum ( -40°C to +240°C)
  5. Resistance to weathering
  6. Good electrical and thermal insulator
  7. Fire resistant
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