Both aluminum silicate fiber wool and rock wool also have the characteristics of high temperature resistance, and can also be used in single crystal furnaces, metallurgical casting, petroleum cracking and space technology, ablation and high temperature insulation materials. Today, the editor of Redun will introduce the difference and use of aluminum silicate fiber wool and rock wool.

1. The difference between aluminum silicate fiber wool and rock wool

1. Performance difference

Aluminum silicate fiber cotton has advantages in terms of long service life and large fiber toughness. Aluminum silicate fiber cotton has lower thermal conductivity. In addition, the temperature of aluminum silicate fiber cotton is above 1000 degrees. The commonly used type is 1050 And 1230 type, and the use temperature of rock wool is about 600 degrees.

2. Difference in purpose

Aluminum silicate fiber wool can be used for low temperature insulation of 200 degrees, medium temperature of 500 degrees, and fire insulation of 1000 degrees. Rock wool is generally used for heat preservation of about 500 degrees, and is mostly used for thermal pipes or Insulation of power equipment, etc.

3. Production process

Ceramic fiber loose cotton is made by melting high-purity clay clinker, alumina powder, silica powder, chromite sand and other raw materials in an industrial electric furnace at high temperature to form a fluid. Then use compressed air injection or spin spinning machine to spin the filament into a fiber shape, and collect the cotton through a 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 a high-efficiency thermal insulation material with 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 from natural rocks such as basalt, gabbro, dolomite, iron ore, bauxite, etc., which are melted and fiberized at high temperature. After the fiber is processed, it can be made into various products such as plates, tubes, felts, belts, etc. It should be used for heat insulation, fire prevention, sound absorption, earthquake resistance, etc. of construction and industrial equipment, pipelines, and furnaces. Rock wool board, rock wool tube, rock wool felt.

The above is the editor to introduce to you the difference between aluminum silicate fiber cotton and rock wool. In contrast, the difference between the two is still very big, but both have a very wide range of uses. Let’s follow the editor to have a look.

Second, the use of aluminum silicate fiber wool and rock wool

1. Aluminum silicate fiber cotton

Aluminum silicate fiber cotton is used in various industrial furnaces and ladle, casting drums, high temperature insulation materials for immersion nozzles, electrical insulation and insulation materials for industrial electric furnaces, furnace doors and furnace body expansion seal materials, and cast aluminum models Inner film, release of glass-ceramic and hot-melt glass, high-temperature sealing gaskets, heat insulation and electrical insulation materials for heating devices of instruments and equipment, muffler insulation materials for automobile mufflers, heat insulation materials for exhaust pipes, etc.

2. Rock wool

Rock wool is widely used in shipbuilding, metallurgy, electric power, construction and other industries, and has good thermal and sound insulation effects. The construction and installation are convenient, the energy-saving effect is remarkable, and it has a high cost performance. Marine and water-repellent rock wool insulation boards are produced with water-repellent additives, which have good moisture resistance. Marine rock wool board is used for heat preservation and fire insulation of ships; water-repellent rock wool board is used for vehicles, mobile equipment, cold storage projects, air-conditioning pipes, heat preservation and fire protection in humid environments, and applications that have certain requirements for moisture resistance. Rock wool board for construction has excellent fire resistance, heat preservation and sound absorption properties. It is mainly used for heat preservation and sound insulation of building walls and roofs; fire protection and noise reduction of building partitions, firewalls, fire doors and elevator shafts.


For more details or questions, please call the company hotline +0531 85800088 or through the online customer service website, you can also leave your contact information, we have professional technical personnel at any time for you to solve problems related to high temperature materials.

SHANDONG REDON HIGH-TEMPERATURE MATERIAL Co. ,LTD. has the domestic advanced production equipment and leading production technology, with an annual output of 1050 ceramic fiber series products, 1260 ceramic fiber series products, 1400 ceramic fiber series products, 1600 polycrystalline series products tens of thousands of tons. With cotton, blankets, blanket, board, paper and all kinds of textiles, special-shaped products, modules, folding, castable, spraying, etc. Various forms of more than 30 kinds of products, can meet the insulation requirements of high temperature field under different conditions, welcome to have a friend need to click the website lower right online customer service or submit online enquiry, we will contact you the first time.