DEI Gold Heat Shield. Designed for wires, cables and hoses, Heat Sheath GOLD ™ provides ultimate protection against heat, as well as chemical and oil spills, dirt, grease and road dirt. Constructed of fiberglass and bonded to an aluminized material to reflect heat. The cover is flame retardant and withstands direct heating up to 425 ° C. -1cm x 1m - Capable of withstanding radiant heat up to 590 ° C