... heat insulation material, which is easy, light and soft to install. It's made from aluminum foil and polyethylene through special machinery. ... vibration, and shielding.4. light, soft, dust - free, fire redartant, easy to install.5. summer: moisture-barrier, sun-prood, heat insulation ... protective coatings of waterpipe and ventilating pipe. Fire-retardant Insulation with Aluminum Foil and Woven Cloth