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PTFE Gaskets
PTFE Gaskets
Asian Sealing Products manufactures PTFE Gaskets
Product & Technology News
- Remarkable chemical resistance
- Suitable for use with foodstuff and pharmaceutical applications
- Insoluble in solvents, even at increased temperature
- Stable to light
- Does not absorb water
- Excellent electrical insulating capacity
- Low thermal conductivity
- PTFE is extremely useful as a gasket material, thanks to its almost chemically inert nature
- Unfortunately, the material has a tendency to creep under load and has limited use in such applications
- Modified PTFE materials allow the benefits of PTFE to be utilised at higher compressive loads and temperatures
- For instance, expanding the PTFE produces a softer material with a higher strength
- The addition of fillers such as silica, silicon carbide or barium sulphate lends the material better hot and cold flow resistance. Hence, the chemical resistance is not negatively affected
- PTFE can also be used as an envelope instead of a more conventional compressed fibre gasket material insert
- This combines the chemical resistance of the PTFE with the stress retention and recovery properties of the insert
- The result? The negative effect of the PTFE on the joint’s mechanical stability is reduced
