Actually it's very simple, glass wool takes glass (silicon?dioxide) as raw material and is made by the processing of equipment; rock wool is made by refining the basalt or diabase through high temperaturem, they are two different products.
Glass wool belongs to a category of glass fiber, is a kind of man-made inorganic fiber. it takes quartz sand, limestone, dolomite and other natural mineral as the main raw materials, and is melt into glass after adding some soda, borax and othe chemical raw materials. In melting state, it's transfered into flocculent fibers with the aid of the external force, fiber and fiber interchanges and intertwins with each other, presenting many tiny gaps. This gap can be regarded as pore. Therefore, glass wool can be regarded as porous materials, and has good thermal insulation and sound absorption performance. Glass wool is made by making the molten glass fibrosis and making cotton material, chemical composition is glass, a kind of inorganic fiber, it has good shape, small volume density, low thermal conductivity, thermal insulation, good sound-absorbing performance, corrosion resistance, stable chemical performance. Rock products take basalt as the main raw material, through high temperature melting, inorganic fiber is made by the high speed centrifugal equipment, add a special binder and swing it with the dust?laying?oil, change the fiber array structure by special equipment, and finally a new type of lightweight thermal insulation material is made after solidification and sizing. According to the different applications, it can be processed into rock wool board, rock wool seam blanket, rock wool pipe shell and other products.
Rock wool board is a kind of thermal insulation material that takes basalt or diabase as raw material and after processing into board, suitable for building exterior wall or roofing heat preservation, and it can also be used in the thermal insulation of large tanks, good strength, small water absorption, good thermal insulation properties, good machinability performance, superior fireproof?performance, the density can be up to 180 kg per cubic metre. Glass wool is made by taking silicon dioxide (glass) as raw materials and through processing, small density, light unit weight, thin fiber, little slag ball, good toughness and it can be bent randomly, and be processed into pipe, plate or blanket, etc., it's mainly used for heat preservation of light steel structure, overhead line (steam) or complex tanks, and it can also be used for the thermal insulation of steel set and steam pipe.
