Pyromex® is a family of oxidized poly-[acrylonitrile] (PAN) fibers. These fibers have a Limiting Oxygen Index (L.O.I.) of between 50 - 60% oxygen, making Pyromex® much more flame resistant than many other organic fibers such as PBI® (41%), Nomex® (30%), or Kevlar® (28%).Information provided by Teijin Carbon America, Inc. |