Teflon® PTFE fluoropolymer fiber is the most chemically resistant fiber known. It is inert to powerful oxidizing agents, boiling sulfuric acid, fuming nitric acid, boiling aqua regia, and boiling sodium hydroxide. Teflon fiber does not degrade at continuous temperature exposures below 400°F. At extremely low temperatures Teflon fiber becomes less ductile, but it can be used at temperatures as low as -450°F.
Teflon® Fiber has outstanding sunlight and weather resistance, and is one of the most non-flammable organic fibers available. Fibers do not melt or drip.