Glass wool, rock wool, and aluminum silicate wool are three common insulation materials with different characteristics and application scenarios.

Glass wool is an inorganic non-metallic insulation material made of molten glass fibers, which has excellent sound absorption, noise reduction, and thermal insulation properties. The main component of glass wool is silicate, which appears as white or slightly light yellow amorphous flocculent fibers with a soft texture and fluffy fiber structure. It does not contain any binders or chemicals.

Rock wool is an inorganic insulation material made by melting natural rocks, which has excellent fire resistance, insulation, and thermal insulation properties. The main component of rock wool is natural rock, which appears yellow or gray in appearance, has a hard texture, high density, is not easy to absorb water, and has good corrosion resistance and durability.

Aluminum silicate cotton is an insulation material made of aluminum silicate fibers, which has high temperature stability, good insulation performance, and low thermal conductivity. The main component of aluminum silicate cotton is aluminum silicate, which has a white or gray appearance, a tight fiber structure, a soft texture, and a certain degree of elasticity and corrosion resistance.