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Heat, spark and flame resistant, chemical resistantant, low thermal conductivity, high tensile strength, no stretch or shrink, high dielectric strength..Fiberglass Tape, Plain, 1/8 in Thick, 1/2 in Width, 50 ft Length Use for various thermal and acoustic insulation, high temperature and protection applications including insulation and protective wrapping for hot pipes, steam tracer lines and exhaust systems, etc. Maximum Temperature Rating 1,000°F (537°C).