50 Years of Designing and Manufacturing Engineered Plastic Parts for Industrial Equipment

PTFE

Polytetrafluoroethylene (PTFE), frequently called by the tradename Teflon®, is a high crystalline thermoplastic with excellent sliding properties, anti-adhesive surfaces, very good insulation properties, and an almost universal chemical resistance. Additionally, PTFE does not absorb moisture and has an exceptionally broad temperature range (-328°F to +500°F). Since PTFE provides unmatched chemical, electrical and thermal properties, it is commonly used for gasket and packaging materials in chemical processing equipment. It is also commonly used for electrical insulation, and as bearings, seals, and piston rings in mechanical applications. Design engineers should be aware that PTFE has low mechanical strength and a high specific weight compared to other plastics. To improve the mechanical properties, PTFE is often compounded with fillers such as glass fiber, coal or bronze.

Teflon® is a registered trademark of E.I. DuPont.
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