Rock wool products are made from rock and slag which are melted in cupola at about 1500â.Therefore rock wool products are noncombustible with a melting point of more than 1,000â. Due to this and its open fiber construction, rock wool products are particularly suitable for thermal insulation, fire protection and sound reduction/absorption. No CFCs, HFCs, HCFCs or asbestos are used in the manufacturing.This kind of products can be divided into with and without facing blankets. The facing materials can be aluminum foil, fiber tissue and fiber cloth, and also the facing materials can be wire mesh on one side or both side of the blanket. Rock wool blanket is a very flexible product for high temperature application. Blankets are particularly suited to meet the specification
of thermal insulation, fire protection and sound attenuation of large process pipes, tanks, vessels, boilers and ducts. Facing blankets are especially suitable where high temperatures combine with vibrations or high fire resistance is required.