... ratio of booting heat, insulating heat, absorb sound and insulating sound; 4.resisting the corrosion of acid and alkali ... applications are: 1.construction industry: heat maintaining, absorb sound, eliminate sound, roof material, material used for fireproofing cloth, forcing ... material of shipbuilding, air plane, car and train, sound absorbing, insulating wall, brake patch, body, muffler; 3. wiring, ...