Polytetrafluoroethylene (PTFE), also known as teflon/teflon or plastic king, is a copolymer of tetrafluoroethylene monomer.

PTFE seal
has become the common seal material for its unique properties.

Performance of PTFE Seal
Stability: almost all chemical resistance, strong acid, strong alkali or strong oxidizer and organic solvents have no effect on it.

properties unit pure PTFE glass fibire filled PTFE carbon filled PTFE
density g/cm3 2.2 2.3 2.08
tensile strength MPa 30 15 13
max. working temperature ℃ 260 260 260

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