The remarkable properties of polytetrafluoroethylene (PTFE) are
well known, notably its low coefficent of fricition, non stick surface
characteristic, wide working temperature range from -180
. excellet weathering resistance and corrosion resistance.
Expanded PTFE unsintered tape makes from pure PTFE. It has an expanded
network composed of superfine fibers and joints. The combination of
flexbility high longitudinal strength, and easy deformability in the
transverse direction. makes expanded PTFE unsintered tape very suitable
for packing and threadsealing applications. But it is not be suitable
for use in certain critical application for example when contact with
high concentration of gaseous oxygen or liqud oxygen involved.