Our Exceptional Grade PTFE Coated Fiberglass Tape is the highest quality tape available.  In addition to its' slippery surface and wide temperature range, its' construction, from more durable and the highest quality materials, provides longer wear characteristics and a wider temperature range than any other PTFE Coated Fiberglass product on the market.  It is chemical resistant and is commonly used in heat sealing and heat transfer applications, where you do not want the heated and mated surface in direct contact with one another.  It comes with a high temperature silicone adhesive so it stays in place once you apply it.  Temperature range is -110F to +520F.