Both aluminum silicate fiber wool and rock wool have the characteristics of high temperature resistance. At the same time, they can also be used in single crystal furnace, metallurgical casting, petroleum cracking and space technology, ablation resistance and high temperature insulation materials. Today, redun Xiaobian will introduce the differences and uses between aluminum silicate fiber wool and rock wool.
1、 Difference between aluminum silicate fiber wool and rock wool
1. Performance difference
Aluminum silicate fiber cotton has more advantages in long service life and large fiber toughness. The thermal conductivity of aluminum silicate fiber cotton is lower. In addition, the service temperature of aluminum silicate fiber cotton is more than 1000 degrees. The commonly used types are 1050 and 1230, while the service temperature of rock wool is about 600 degrees.
2. Different uses
Aluminum silicate fiber cotton can be used for low temperature insulation of 200 degrees, medium temperature insulation of 500 degrees, and fire insulation of 1000 degrees. Rock wool is generally used for insulation of about 500 degrees, mostly for thermal insulation of thermal pipelines or power equipment.
3. Production process
Ceramic fiber bulk cotton is a high-purity clay clinker, aluminum oxide powder, silica powder, chromite sand and other raw materials melted at high temperature in an industrial electric furnace to form a fluid. Then, the compressed air is used for blowing or the wire is thrown by the wire throwing machine to form fiber shape, and the cotton is collected by the cotton collector to form aluminum silicate fiber cotton. Fiber cotton can be further processed into fiber blanket, board, paper, cloth, rope and other products. Ceramic fiber is an efficient thermal insulation material, which has the characteristics of light weight, high strength, oxidation resistance, low thermal conductivity, good flexibility, corrosion resistance, small heat capacity and sound insulation.
Rock wool is an inorganic fiber made of natural rocks such as basalt, gabbro, dolomite, iron ore and bauxite through high-temperature melting and fibrosis. After processing, the fiber can be made into various products such as plate, pipe, felt and belt, which can be used for thermal insulation, fire prevention, sound absorption and earthquake resistance of buildings and industrial equipment, pipelines and kilns. Rock wool board, rock wool pipe, rock wool felt.
The above is Xiaobian’s introduction to the difference between aluminum silicate fiber cotton and rock wool. In contrast, the difference between the two is still great, but both have a very wide range of uses. Let’s follow Xiaobian to have a look.
2、 Application of aluminum silicate fiber wool and rock wool
1. Aluminum silicate fiber cotton
Aluminum silicate fiber cotton is used for high-temperature thermal insulation materials of various industrial furnaces and ladle, casting barrel and submerged nozzle, electrical insulation and thermal insulation materials of industrial electric furnaces, expansion joint sealing materials of furnace door and furnace body, inner wall of cast aluminum model, film separation of microcrystalline glass and hot-melt glass, high-temperature sealing gasket, thermal insulation and electrical insulation materials of heating devices of instruments and equipment Silencing and thermal insulation materials for automobile silencers, thermal insulation materials for exhaust pipes, etc.
2. Rock wool
Rock wool is widely used in shipbuilding, metallurgy, electric power, construction and other industries, with good heat insulation and sound insulation effects. Convenient construction and installation, remarkable energy-saving effect and high performance price ratio. Hydrophobic additives are added to marine and hydrophobic rock wool insulation board during production, which has good moisture-proof performance. Marine rock wool board is used for thermal insulation and fire partition of ships; Hydrophobic rock wool board is used in vehicles, mobile equipment, cold storage engineering, air conditioning pipes, thermal insulation and fire prevention in humid environment and applications with certain requirements for moisture-proof. Rock wool board for building has excellent fire prevention, thermal insulation and sound absorption properties. It is mainly used for thermal insulation and sound insulation of building walls and roofs; Fire prevention and noise reduction of building partitions, firewalls, fire doors and elevator shafts.


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Shandong redon high temperature materials Co., Ltd. has domestic high-end production equipment and reliable production technology, with an annual output of 1050 ceramic fiber series products, 1260 ceramic fiber series products, 1400 ceramic fiber series products and 1600 polycrystalline series products of more than 10000 tons. There are more than 30 kinds of products in different forms, such as cotton, blanket, felt, board, paper, various textiles, profiled products, modules, folding blocks, castables, spraying and so on, which can meet the heat insulation requirements of different situations in the high temperature field. Welcome to click the online service at the bottom right of the website or submit an online inquiry. We will contact you as soon as possible.