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PTFE Gaskets

2023-03-19 09:10:03  Knowledge

PTFE gaskets are made from the synthetic fluoropolymer tetrafluoroethylene (PFTE), which is a completely carbon and fluorine-based material. It is a hydrophobic material that has one of the lowest coefficients of friction against any solid substance, making it an excellent choice for sealing and gasket applications.

Typical applications include seals in electrical motors, components, transformers and various electrical appliances that are subjected to high heat and wear. PTFE gaskets also provide excellent thermal insulation, able to resist temperature up to 500degF.

There are several types of PTFE sheet gaskets. These include Virgin grade PTFE, Filled PTFE and Expanded PTFE.

Virgin PTFE is a 100% pure form of Teflon that has never been processed into a shape or molded. It has the highest physical and electrical insulation properties and is ideal for chemical resistant seals and gaskets.

Filled PTFE is made by adding fillers to a standard Virgin PTFE base and is a versatile alternative for seals that require higher tensile strength. Fillers can be glass, graphite or carbon and each type has different benefits.

Expanded PTFE is a variant of PTFE that has been expanded to create uniform tension strength across the entire surface of the material. This results in a soft, conformable, and highly flexible material that can envelop irregular surfaces.

PTFE can be used in a wide range of applications, including compressors and food processing plants. It has outstanding temperature and chemical resistance and is FDA and AMS compliant.

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