Hantai F-grade fireproof sleeve (aviation grade) is woven with high fluffy fiber and coated with special high-temperature organic heat-resistant silica gel. After high-temperature vulcanization, it has excellent high-temperature fireproof function, heat insulation effect, low weight and low density and other special properties. Its flame retardant grade is VW-1, tensile strength ≥ 5.5mpa, tear strength ≥ 10kN / m, elongation ≥ 200% and hardness is 35shore a. Patent No.: 201620975674.8. The products are widely used in aerospace, robotics, metallurgical casting, hydraulic fluid pipeline, medium frequency induction furnace, rail transit, harness, cable, metal hose and other harsh environment of high temperature protection.