retains its properties after exposure to temperatures beyond the limit
of almost all other thermoplastics and elastomers. Depending on the
end-use requirements, PTFE is rated for continuous service at temperatures
as high as 500°F. It also can sustain short exposure at higher
offers extraordinary resistance to high temperature and flames because
it has a very high melting point and auto-ignition
Temperature, as well as exceptional thermal degradation thresholds.
PTFE's flame propagation characteristics, such as rate of heat release
and smoke generation is very low.
has one of the lowest coefficients of friction of any solid material.
Its abrasions resistance is adaptable to demanding environments by
using inorganic fillers, such as glass fiber, carbon or graphite.
is chemically pure and inert. It contains no additives such as lubricants,
stabilizers, plasticizers or antioxidants that can contaminate process
has an extremely low surface energy in the solid state. This provides
an excellent anti-stick, non-wetting contact surface. Conversely,
when these resins are in a molten form, they become low surface- tension
liquids, ideal for hot melt adhesives.
retains its excellent properties even at cryogenic temperatures. PTFE's
impact resistance at these temperatures exceeds that of most other
has excellent chemical resistance. It will resist most aggressive
organic and inorganic chemicals, acids and solvents over a broad temperature
exhibits excellent retention of properties after a long period of
time, even at elevated temperatures and in the presence of oils, solvents,
UV light, oxidizing agents and other environmental agents.
has one of the lowest refractive indexes. It does not change its visual
apperance after exposure to ultraviolet or infrared light.
has remarkable dielectric strength, low dielectric constant, low loss
and high specific resistance. PTFE surpasses most material in its
level and stability of dielectric properties over a wide range of
is inert to microbiological and enzymic attack because the pure polymer
does not provide any nourishment or porosity for these growths.
is not affected by ultraviolet and is resistant to oxidation, discoloration,
is completely resistant to hydrolysis. PTFE is a good barrier for
water permeation. Its typical properties and dimensional stability
remain unchanged even after long periods of time in water.