what is stone wool made of
Glass wool products usually contain 95% to 96% inorganic material. Stone wool is made from volcanic rock, typically basalt or dolomite, an increasing proportion of which is recycled material in the form of briquettes.Mineral wool made from blast furnace slag (waste) is sometimes known as slag wool.here are two types of mineral wool product: glass wool insulation and stone wool insulation. Inorganic rock or slag are the main components (typically 98%) of stone wool. The remaining 2% organic content is generally a thermosetting resin binder (an adhesive) and a little oil.