Petrochemical and chemical processing: PTFE is the material of choice for gaskets, vessel
linings, pump interiors, washers, rings, seals, spacers, dip tubes and well-drilling components because
it is corrosion resistant and chemically inert; it is unaffected by virtually all acids and caustics and
functions in environments to 500 degrees F..
Electrical applications: PTFE is one of the best insulators known. In thin
sections, it will insulate to 500 volts per mil. There are grades of PTFE which have even greater
dielectric strength. It is frequently used in wire and cable wrap, and to separate conductive surfaces in
capacitors. Thick walled close-tolerance extruded tubing is the PTFE shape of choice where machining or
drilling long lengths to close tolerances is impossible. Multi-hole tubing can be extruded. PTFE can be
machined into standoff insulators, and many different types of high voltage encapsulation devices for
electrical components.
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