Expanded PTFE Gasketing | Vulcan Seals
Expanded PTFE Gasketing
Vulcan Seals - Expanded PTFE Gasketing

Vulcan Seals Tefcan® Expanded PTFE Gasketing

We manufacture and supply a wide and stock-guaranteed range of Expanded PTFE Gasketing (Tefcan®), suitable for virtually any industry, from the simplest to the most complex applications and environments.

The unique material properties of Expanded PTFE allows for a strong, flexible material resistant to virtually all chemicals/corrosive media and withstands extreme temperatures and pressures.

Designed for easy installation, saving cost and time, as well as reducing equipment maintenance and downtime through its long and effective service life.

Material Properties

Vulcan Seals Tefcan® is made of 100% pure PTFE, expanded via a unique process into a consistent, highly fibrillated structure. Upon compression, the fibrils lock together to form a strong, uniform material, impervious to gases and liquids.

It seals under extreme temperatures, pressures and against corrosive media, where conventional materials would break down. Even during application, the material is incredibly resistant to creep, relaxation and cold flow - issues which are often associated with other gasket materials, especially virgin or filled PTFE.

Operating throughout the pH range, resistant to thermal cycling, non-contaminating and therefore can be used in virtually any industry, sealing the simplest to the most difficult of gasket applications.

Operating Limits

Gasket Temperature: -240ºC to +310ºC (-450ºF to +600ºF)
Internal Pressure: From full vacuum to 207 bar (3,000 psi)
Media pH Value: 0 to 14 (except for molten alkali metals and elemental fluorine)

Limits are for guidance only. Product performance is also dependent on other equipment material and operating conditions.

Vulcan Seals Tefcan® Expanded PTFE Range

Universal Joint Sealant
Expanded PTFE in cord form with a self-adhesive backing strip for ease of installation. It is a superior and cost-effective alternative to standard gasket sheeting. Ideal for complex or large gaskets and for resealing damaged, worn or distorted flanges.

Width Thickness Spool Length
3 mm (1/8”) 1.5 mm 30 metres
5 mm (3/16”) 2.0 mm 25 metres
7 mm (1/4”) 2.5 mm 15 metres
10 mm (3/8”) 3.0 mm 10 metres
14 mm (1/2”) 5.0 mm 5 metres
17 mm (5/8”) 6.0 mm 5 metres
20 mm (3/4”) 7.0 mm 5 metres

Sheet Gasketing
PTFE in a pure expanded form that resists cold flow. Flexible and economical, it is fast and easy to cut and install. Supplied as pre-cut gaskets or in sheet form to cut on site as required.

Thickness Length Width
0.5 mm 500 mm 500 mm
0.5 mm 1500 mm 1500 mm
1.0 mm 500 mm 500 mm
1.0 mm 1500 mm 1500 mm
1.5 mm 500 mm 500 mm
1.5 mm 1500 mm 1500 mm
3.0 mm 500 mm 500 mm
3.0 mm 1500 mm 1500 mm
6.0 mm 500 mm 500 mm
6.0 mm 1500 mm 1500 mm

Gasket Tape
Flat gasketing material for applications requiring a strip or full-face gasket. Combines the benefits of Tefcan joint sealant and sheet gasketing to offer flat sheet, strip gasketing with minimal waste. Adhesive backed for ease of installation.

Available as thin, flat gasket strips of 1, 1.5 and 3mm (1/25”, 1/16” and 1/8”) thickness by 25, 50, 100 and 200mm (1, 2, 4 and 8”) width.

Standard spool length is 15.2m (50ft). 4.6m (15ft) spool length available for 3mm (1/8”) thickness tape.

Typical Applications

Tefcan sealants are so versatile they can be used and provide exceptional performance in virtually any industry, from the simplest to the most complex applications and environments.

Typical Industries:

  • Pulp and Paper
  • Chemical Processing
  • Petrochemical
  • Pharmaceutical
  • Food and Drink
  • Offshore Oil and Gas
  • Automotive
  • Power
  • Marine
  • Mining
  • And many more

Typical Equipment Applications:

  • Pipe Flanges
  • Glass Joints
  • Pressure Vessels
  • Heat Exchangers
  • Pump Gaskets
  • Gearbox Lids
  • Compressor Flanges
  • Manhole Gaskets
  • Fan Housings
  • Turbine Cases
  • Steam Vessels
  • Hydraulic Systems
  • Reactor Lids
  • Diesel Engines
  • And many more


Send us an enquiry

To help us provide you with the best answer, please provide as much of the following as possible:

  • Type required (sealant/sheet/tape)
  • Shaft size
  • Quantity (area/length)
  • Application

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