Filled PTFE

Filled PTFE

By combining PTFE with certain filler materials, some physical and mechanical properties can be positively influenced, however other properties may be negatively affected.


Advantages of adding fillers
  • Reduction of cold flow
  • Increase of rigidity at high temperatures
  • Greater heat conduction and dissipation
  • Greater abrasion resistance


Glass Filled PTFE

This PTFE comes in an ivory colour (off white).
Adding glass powder drastically reduces the tendency of the material to cold flow.


  • Valve seats and rings
  • Flat gaskets
  • Sealing cones
  • Chevron sets
  • Bearings
filled ptfe
Carbon Filled PTFE

This PTFE has a matt black colour.
Adding carbon to PTFE increases the materials abrasion resistance and stability.


  • Bearing bushings
  • Piston rings
  • Piston guide rings for dry running compressors
  • Rod wipers rings
  • Chevron sets


Graphite Filled PTFE

This PTFE is greyish black in colour.
Adding graphite to PTFE results in the material having an exceptional resistance to abrasion and friction due to the lubrication offered.


  • Shaft seals
  • Bearings and bushes
  • Sliding plates
  • Construction components


Bronzed Filled PTFE

This PTFE has a "goldy" brown colour (bronze).
Adding bronze gives the material the best abrasion resistance, thermal conductivity and the lowest cold flow rate.


  • Bearings
  • Piston rings
  • Guide rings for hydraulic cylinders
  • Sheet bearings
  • Other severe applications


  • Rods
  • Billets
  • Machined components
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