Polytetrafluoroethylene (PTFE) Fluolion® is the James Walker registered trademark for its PTFE material grades and products.
Chemical properties PTFE is an extremely inert material and is unaffected by virtually every known chemical including most acids, alkakis and solvents.
Typical operating temperatures -200°C to +250°C continuous.
Fluid sealing duties The exceptional chemical resistance of PTFE makes it an ideal material for 'O' ring back-up rings. Its flow characteristics under stress are usually a disadvantage in PTFE 'O' rings.