†meets government MIL SPEC MIL-C20079H
PTFE coating operating temperature to 600° Celsius.
Fiberglass coating operating temperature to 1000° Celsius.
 

Teflon coated fiberglass is made from a continuous filament fiberglass yarn. Fiberglass is one of the strongest chemically resistant sewing threads on the market today. For sewability and additional protection against contaminates, PTFE finish can be added to the thread.

Teflon is widely used in filter bags, insulation jackets, protective clothing, welding, curtains and blankets.