PTFE
  
Trade Names
 PTFE
Available
 Sheets, Rods, Tubes, Plates
Colours
 White
Similar Plastics
 Fluorosint

PTFE RodPTFE Rod & TubePTFE Sheet

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PTFE Sheets, Rods, Tubes & Plates

PTFE is truly a unique material and still the most widely used of all the fluoropolymers. PTFE has a combination of chemical, electrical and thermal performance unmatched by any other commercially available material.

PTFE is available in sheets, rods, tubes and plates; as well as various different grades. Other forms of PTFE available include: Mica filled, glass filled, electrical sleeving and Skived Tapes.

 

 

 


PTFE Characteristics

  • Outstanding chemical resistance
  • Superb electrical insulating properties
  • A wide working temperature range from 260°C down to liquid nitrogen temperatures (-260°C)
  • And a very low coefficient of friction, resulting in unique non-stick behaviour
  • High dielectric properties
  • Non-toxic

PTFE sheet and tape can be given an etched surface suitable for adhesive bonding.

PTFE filled grades offer a range of materials that expand on the properties of PTFE

  • PTFE Virgin, unfilled
  • Fluorosint 500 proprietary, mica filled
  • Fluorosint 207 proprietary, mica filled
  • GL15 15% Glass filled
  • GL25 25% Glass filled
  • C35 35% Carbon filled
  • B60 60% Bronze filled
  • BM555 55% Bronze + 5% Molybdenum Disulphide filled

Improved material properties can be achieved by the addition of selected fillers. These fillers extend performance characteristics and allow for wider application - particularly in demanding thermal stability and load support situations. In addition, the frictional and thermal properties of PTFE remain generally unaffected.

The glass-filled PTFE grades, GL25 and GLI5, show improved wear and creep resistance compared with unfilled PTFE, while the chemical resistance is virtually unaffected. B60, a bronze filled compound, has a high thermal conductivity resulting in excellent bearing properties at high speeds, particularly where unhardened shafts are used. BM555, a PTFE containing bronze and MoS2, has been designed for low friction, low wear applications such as piston rings and bearings.

PTFE Selection Guide, PTFE Additives and Benefits

Fluorosint (See also advanced engineering plastic materials Fluorosint)

  • Maximum dimensional stability
  • Excellent bearing characteristics
  • Improved thermal and mechanical properties over unfilled PTFE
  • Ideal for applications within hot air or stream filled environments

Mica (Filled PTFE)

  • Good chemical resistance
  • Low creep - good dimensional stability
  • Improved comprehensive strength
  • Fluorosint 207 is food approved

Glass Fibre (Filled PTFE)

  • Oxidation and acid resistance
  • Dimensional stability
  • Good electrical properties

Molybdenum Disulphide (Filled PTFE)

  • Improved wear resistance - aids low friction
  • Combines beneficially with other additives
  • Good in vacuum applications
  • Good in unlubricated bearing applications

Graphite (Filled PTFE)

  • Good thermal conductivity
  • Chemically inert
  • Low friction
  • Minimum wear to mating surface

Carbon (Filled PTFE)

  • Excellent dry wear resistance
  • Good chemical resistance
  • Lowest electrical resistance
  • Good wear resistance in water applications

Bronze (Filled PTFE)

  • Improved comprehensive strength and hardness
  • High thermal conductivity
  • Low creep, wear and friction
  • Goods for high load unlubricated bearings