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PTFE (Polytetrafluoroethylene) Sheets

PTFE (Polytetrafluoroethylene)

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 of PTFE. Other forms of PTFE available include: Mica filled PTFE, glass filled PTFE, PTFE electrical sleeving and PTFE 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 Applications

  • Bearings
  • Cell lids
  • Insulators
  • Seal rings
  • Wear rings
  • Valve seats
  • Frictions pads
  • Lantern rings

Availability

.
Round Rods (mm)
Sheet / Plates (mm)
Tubes O.D. (mm)
Extruded PTFE
4 - 90
0.25 - 60
9 - 120
Moulded PTFE
50 - 505
N/A
65 - 600
PTFE Thin Wall Tubing
N/A
N/A
2 - 28
PTFE Skived Tapes
N/A
N/A
0.05 - 5
PTFE Spaghetti Tubing
N/A
N/A
On Application
PTFE Spaghetti & Electrical Sleeving
N/A
N/A
On Application
 
Available Online at PlasticStockist.com
Available Online at PlasticStockist.com
Call 0191 258 0777 for Availability

Please note: Certain sizes are non-standard and are generally not available from stock but manufactured to order. For further information, please call the sales team on 0191 258 0777.

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

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 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.

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PTFE Selection Guide, PTFE Additives and Benefits

Fluorosint (See also advance 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

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PTFE
Polytetrafluoroethylene
PTFE Tubes
PTFE Rods
Bay Plastics Home Bay Plastics Ltd, Unit H1, High Flatworth, Tyne Tunnel Trading Estate, North Shields, Tyne & Wear, NE29 7UZ
Tel: +44 (0) 191 258 0777 / Fax: +44 (0) 191 258 1010
Company Reg No.2325035 V.A.T No. 499988139
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