Expanded PTFE Sheet

Expanded PTFE Sheet

Expanded PTFE Sheet consists of 100% Virgin PTFE. The manufacturing process produces a multidirectional fibrous texture which gives the material its special properties. This creates a soft and pliable, yet very tough gasket that has excellent resistance of pressing, creep relaxation and cold flow. It can seal the uneven and damaged flanges.

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Product Description

Expanded PTFE Sheet consists of 100% Virgin PTFE. The manufacturing process produces a multidirectional fibrous texture which gives the material its special properties. This creates a soft and pliable, yet very tough gasket that has excellent resistance of pressing, creep relaxation and cold flow. It can seal the uneven and damaged flanges. TEFLON sheet is a soft highly compressible sealing material and shows very low compression rates & exhibits very little increase in width even under extreme sealing conditions. The exceptional malleability of TESLON Expanded PTFE can compensate for damaged sealing surfaces. This allows use with stress sensitive connections and applications where only a limited flange load is available e.g. Plastic Flanges, Glass Flanges, etc.


Technical Parameters:

  • Temperature: -240°C to +260°C
                               up to +300°C for short term
  • Max pressure: From vacuum up to 20Mpa
  • pH range: 0-14 except molten alkali metals and elemental fluorine
  • Density: 0.80-0.95g/cm³
  • Compression Ratio: 60%
  • Elastic Resilience Ratio: 6%

Typical Applications:

  • Large and complex flange dimensions
  • Steam vessel flanges
  • Fumes ducts
  • Concrete lids, manways, ceramic joints
  • Heat exchangers
  • Hydraulic and pneumatic systems


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