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Virgin PTFE is capable in its own right, but when fillers, such as metal, are added, it enhances the material wear and deformation characteristics to more fully exploit their unique combination of chemical, physical and electrical properties.

Metal-filled PTFEs has the best wear properties, remarkable deformation strengths and good thermal conductivity, but poor electrical characteristics and chemical resistance.

PTFE-BR: Bronze is the most common metal filler, added in percentages of weight between 40 and 60%. Bronze-filled PTFE is used in bearings at high speeds (particularly where unhardened shafts used), Wear pads, piston rings.

PTFE-SSF: The other choice is stainless steel, added in percentages of weight between 5 and 10%. Stainless steel filled PTFE compounds are used for seats and seals requiring high heat and steam applications. This compound is also used in many applications involving food processing.

Brand Names

  • Teflon®

Emco Industrial Plastics doesn’t claim to represent all of the manufacturers or trade name products listed. This list is intended as a guide of typical materials available for purchase from Emco Industrial Plastics, Inc. For additional information, contact an Emco Industrial Plastics representative by filling out the form below.

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At a Glance

Generic Name
PolyTetraFluoroEthylene, Metal Filled

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Technical Information

Applications Advantages Grades

Applications

  • Machine tool slide ways
  • Bearings
  • Rod and piston seals
  • Guide, extrusion rings
  • Wear pads
  • Liners
  • Bushings

Advantages

  • High wear resistance
  • Low friction
  • Good chemical properties
  • Low moisture absorption
  • High Tensile strength
  • Good abrasion resistance
  • Low coefficient of friction

Grades

  • Unfilled – Virgin
  • Unfilled – Mechanical
  • Glass Filled
  • Metal Filled
  • Carbon Filled
  • Mineral Filled
  • Blend
  • Static Control – Dssipative

NOTE: Several grades of this material are available. For additional information regarding this plastic, contact your Emco Industrial Plastics representative or call 973-862-4148.

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