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Basalt fiber is a material made of extremely fine basalt fiber. Similar to glass fiber, it has better physical and mechanical properties than glass fiber. It has high strength, high modulus, high and low temperature resistance, corrosion resistance and other excellent properties, but it is much cheaper than carbon fiber. It is used as refractory in aerospace and automotive industries.

Basalt fiber is made ofcrushed basalt from a carefully selected quarry source.. Unlike other composite materials (such as glass fiber), there is basically no material added in the production process. Just wash the basalt and melt it.

The production of basalt fiber requires melting the broken and washed basalt at a temperature of about 1500 ° C.

The filamentdiameter of basalt fiber is usually 10 to 20 μ M, they have higher elastic modulus, so they have higher specific strength, which is three times of that of steel. Basalt fiberis one of the most promising application products.

The breaking strength is 60%higher than E-glass fiber, and the elastic modulus is 25% higher。