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Question:

Does rock wool look like glass wool ?

nan

Answer:

They are not the same. The main raw material of glass wool is glass with long thin and elastic cellosilk, while that of rock wool is basalt with short and thick rock wool silk. But both are used for thermal insulation. Glass wool is more expensive.
Glass wool is made through high temperature melting of industrial waste glass, and then making glass into flow by high-speed centrifuge, pulling glass flow into fiber under high temperature and high speed. Rock wool is inorganic fiber made by base materials of fine basalt after high temperature melting in high-speed centrifugation equipment. Glass wool is more economical and environmentally friendly than rock wool.
Not the same, glass wool is not suitable for external wall thermal insulation because it is not flat, but rock wool is suitable.
No, there are two kinds of products. Main raw material of rock wool is basalt while that of glass wool is glass.

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