Get an Idea about Purchasing PTFE Gasket Online


PTFE is the abbreviation of polytetrafluoroethylene. Being a registered trademark of DuPont it is commonly known as Teflon. As compared to rubber or other material, as it is able to withstand significantly more aggressive chemical environments, it is utilized as a sealing material.

However, as compared to that of standard graphite gasket or non-asbestos materials PTFE gasket operating mechanical performance, pressure and temperature can be inferior.

As it has the capability to remain unaffected by the majority of chemicals used in industry and is essentially inert PTFE is principally used as a gasket material.

Also, making it acceptable to both food production and medical industries can be classified, as a food grade material, in most cases. Expanded PTFE, filled PTFE, Virgin PTFE and restructured PTFE are four basic types of PTFE gasket materials from the PTFE gasket supplier.

Filled PTFE – to increase its sealing and mechanical properties Filled PTFE is made of fillers such as glass fiber and virgin PTFE resin. First, it is formed into a billet, and then from the billet sheets of are skived or cut.

Virgin PTFE – Sintered to form a solid material, Virgin PTFE is simply pure PTFE resin. Out of the three varieties, it is the least expensive, and to the other two, some of its mechanical properties are inferior.

Expanded PTFE – It is virgin PTFE to which by means of molecular rearrangement a stress resistance has been added during manufacturing. This process enables that the molecular chains do not arrange themselves into set patterns and from this, the PTFE is constructed.

This means that no structural weakness (grain) is possessed by expanded PTFE offered by PTFE gasket manufacturer company and in all directions, it contracts and expands equally. The unique chemical resistance of virgin PTFE is possessed by the expanded PTFE also as no additives are required.

Restructured PTFE – made with specific fillers and a virgin PTFE resins restructured PTFE is a gasket material for additional mechanical properties. Even distribution of those fillers throughout the sheet is ensured by the way of its manufacturing. A material with much-improved sealing characteristics is the result. This material is strong, yet with very good chemical resistance is highly compressible.

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