DW FST is a pressure sensitive
tape using highly tensilized skived PTFE film with high
temperature silicone adhesive. The tensilized film in FST
has the highest per unit tensile strength, toughness and
high temperature resistance of any DeWAL PTFE products.
FST is used almost exclusively for roll protection in high
speed, high temperature flat die extrusion of polyethylene
coatings and laminations.