PTFE (polytetrafluorethylene), better known under the trade names Teflon, Dyneon™, Hostaflon® and Fluon®, is characterized in particular by its superior resistance to chemicals and temperatures, its low friction values and good insulating properties. The thermoplastic fluorocarbons—PFA (perfluoralkoxy copolymer) and FEP (perfluroethylene propylene)—are used as linings or jacketing for metallic components and achieve corrosion protection comparable to that of PTFE. An extensive range of partially fluorinated polymers rounds out the options.
Among the engineering plastics, the superior position of PTFE is uncontested, based simply on its superb properties. If great resistance to chemicals (acids, bases and organic compounds) is required across a wide temperature range, it has been shown in practice that even high-quality steels and other special metals (such as titanium and tantalum) are subject to certain limitations.
Here the fluorocarbons open the way to broad application areas.
Further information can be found on the pages of the relevant materials, where you also find tables for download .