Thermo-Tec 14001 36" X 40" Aluminized Heat Barrier This product can be installed using standard rivets with a backup washer or weather strip adhesive For conductive heat applications the fabric side can handle temps in the range of 350-1200 degrees Fahrenheit When used as a heat shield, the Barrier should be installed so the bright metallic surface faces the heat source; when used to retain heat the fabric fiberglass side is on the surface This flexible high-temperature material makes it an excellent choice for any application when a versatile heat control product is needed