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The difference between glass wool and rock wool

06.09.2024
The difference between glass wool and rock wool

What is the difference between stone insulation and glass wool insulation?

1. Different raw materials: The main raw materials of glass wool are broken glass, quartz sand, limestone, dolomite, etc. After high-temperature melting, they are spun into glass fibers by centrifuges and solidified into glass wool. The main raw material of rock wool is basalt.

2. Different density: The density range of rock wool is 40kg/m3-200kg/m3, and the density range of glass wool is 10kg/m3-120kg/m3, so glass wool has a lower bulk density than rock wool

3. Different uses: rock wool stone insulation is mostly used for heat preservation, while glass wool is more used for sound absorption.

4. Different application temperatures: The application temperature of rock wool is about 600℃, and that of glass wool is only about 260℃. Glass wool is generally used for heat preservation parts below 200℃, and rock wool stone insulation is generally used for heat preservation parts at a temperature of 500℃, and is mostly used for heat preservation of high-temperature thermal pipes or power equipment.