PTFE & Teflon -
【 PTFE & Teflon Applications 】
Applications of PTFE & Teflon
PTFE & Teflon is used extensively in many different industries:
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
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.
PTFE is inert, and its operating temperature range is from minus 350 degrees
Fahrenheit to 550 degrees Fahrenheit. When made to ultra pure standards
it is the material of choice for various items used in chip manufacturing,
including encapsulation devices for quartz heaters, and the like.
Food, Beverage and Pharmaceutical industries:
Virgin PTFE is approved by the Food and Drug Administration for use in
the food, beverage, cosmetics and pharmaceutical industries. Thin Film
and sheets make an inert, no-toxic slide surface without microscopic depressions
where microbes can grow. Conveyancing components - profiles, guide rails
and slides - can withstand high temperatures inside baking and drying ovens
and other heated segments of the food, cosmetics or pharmaceuticals manufacturing
PTFE piping, tubing and vessels are used in various laboratory ware because
of their chemical resistance, and inertness. No contaminants adhere to
Glass filled PTFE can be cut or stamped into bearing pads, and will resist
all weather-related degradation while remaining an inert interface between
disparate construction materials, like steel and concrete.
Various fillers can be blended with the PTFE base resin to enhance certain
properties, e.g. glass fiber, glass bead, carbon, graphite, molybdenum
disulfide, bronze, etc.
PTFE does not melt; it cannot be molded into complex shapes, but must
be machined. PTFE is easily machined using standard mechanical woodworking
and stamping equipment and tooling. Most shapes are sold slightly oversized
for easy trimming and machining to exact sizes.