PTFE seals are always in the frame when one is talking about high performance seals in extreme conditions of temperature and pressure where elastomers would not fill the bill. PTFE (or Polytetrafluoroethylene for you organic chemists) is one of those materials that is inert and dimensionally stable from -185ºC (-300ºF) to +288ºC (+550ºF) and chemically inert against most corrosive materials. Continue reading
Posted in General applications
Tagged chemically resistant, Cryogenic gasses, energisers, PTFE Seals, rms, surface smoothness
Typical PTFE Seal
PTFE seals have become an industry standard seal component in rotating and sliding shaft and piston seals. It can be no surprise in view of its low coefficient of friction between 0.05 and 0.10, its high density of 2,200kg/m3, its chemical inertness, and high temperature resistance approaching 300˚C, makes an ideal material to use in high temperature sealing components. Its near unique properties were discovered by accident in 1938 and it wasn’t long before the material came to the public’s notice when DuPont branded it as Teflon® Continue reading
When it comes to materials technology, PTFE must surely be one of the most significant developments of the last hundred years. With one of the lowest coefficients of friction of any known solid material, significant hydrophobic properties and good heat resistance, this fluoropolymer has found uses in an astonishing range of both industrial and consumer products — not least in the form of PTFE seals. Continue reading
Posted in General applications
Hello and welcome to this blog about PTFE Seals. Here we will publish a range of articles intended to provide designers, engineers and purchasers with informative and relevant nuggets of information about the various types of PTFE seals and their industrial and commercial applications. Continue reading
Posted in Welcome