Specification :

PTFE ( Teflon) Coated Fiberglass Roll Covering Tape is fiberglass fabric impregnated with PTFE dispersion and coated with high-temperature, pressure-sensitive silicone adhesive. It has two types: one has lining, the other hasn’ t.
Features and Benefits
Optimal release
Less maintenance than shrink tubing or spray coating
Electrical insulation
Dimensional stability
Excellent temperature resistance: -100° F - + 500° F ( -73° C - + 260° C)
It is used primarily as a roll covering material on the drying cylinders and textile dry cans in the manufacturing of fine paper and in other applications where the high temperature capabilities and superior release properties of this product are required.