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Light steel wool quality glass wool vs. rock

Release time:

2021-06-10

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We know that the most commonly used insulation materials for light steel villas are glass wool and rock wool, so what is the difference between glass wool and rock wool as insulation materials for light steel villas?

We analyse the difference between glass wool and rock wool from the following aspects

1: the difference between glass wool and rock wool, different production materials and processes
Glass wool is based on glass as the main raw material, mixed with a variety of auxiliary materials in a certain proportion, and then sent to the glass melting kiln fully melted. The melted solution flows out through the drainage board and enters the centrifuge. Driven by a high-speed centrifuge, the centrifuge rotates the glass into a fine glass stream. Under the action of a high temperature, high speed flame, the fine glass stream is further stretched into fibres. The atomised binder is then applied to a cotton web, to which the fibres are attached under the action of a negative belt air pressure. The resin binder is deposited on the moving mesh belt to form a uniform cotton mat. The curing process is then completed in a constant temperature curing oven and the product is moulded. After moulding, it is cut into the ordered products and then packaged.

Rock wool products are made from refined basalt as the main raw material. Inorganic fibres are melted at high temperatures and made by high-speed centrifugal equipment, then special adhesives and dust-proof oil are added to the oscillating belt, and the fibre arrangement structure is changed by special equipment. A new type of lightweight thermal insulation material made by curing and moulding. According to different uses, can be processed into rock wool board, rock wool seam felt, rock wool pipe shell and other products.

2: the difference between the acoustic properties of glass wool and rock wool
Both glass wool and rock wool have sound insulation properties. As sound insulation cotton, 24kg/m3 centrifugal glass wool has the same sound insulation performance as 80kg/m3 rock wool.

Therefore, in terms of sound insulation effect, if used in light steel villa, from the point of view of weight capacity, glass wool must give priority to rock wool, because lighter weight can also achieve the same sound insulation effect.

3: the difference between glass wool and rock wool waterproof performance
Glass wool will not be soaked in rain and rupture, easy to dry after soaking, stable performance. Rock wool immediately collapsed after immersion, the performance loss is great.

4: the difference between the service life of glass wool and rock wool
Glass wool will not cause pulverisation and a sharp decline in performance. Service life of up to 30 years. Rock wool is easily pulverised. After a certain period of time, the slag ball will fall off or even shatter. The service life is usually about 10 years.
In summary, the difference between glass wool and rock wool as light steel villa insulation material, you can choose the right insulation material according to your needs.

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