Halar self-extinguishing sleeving is used where flammability, high temperature endurance and low outgassing are primary concerns. Halar is braided from 11 mil ethylene chlorotrifluoroethylene (ECTFE) copolymer monofilament.Because of its low flame spread and smoke generation properties, this product meets UL 2024 and NFPA 262 plenum specifications, carries a UL flame resistance rating of VW-1 and exceeds automotive industry requirements of FMVSS 302, as well as aviation industry requirements of FAR 25.Halar resists a wide range of corrosive chemicals and organic solvents, including strong acids, chlorine and aqueous caustics. Halar ECTFE also maintains useful properties on exposure to cobalt 60 radiation at doses up to 200 megarads.