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Low CO2 additive – A solution for precast industry

The precast products are custom-ordered concrete structures that are prepared, cast, and cured using molds. The concrete structures are built at a manufacturing facility and

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Silica Fume in Refractory Materials

It is observed that only the best high-temperature resistant materials are used as refractory materials. The refractory materials are made from a mixture of silicon,

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Founded in 2001, HSA is a leading provider of Silica Fume in China, and also the premium source of high-performance Silica Fume products for concrete and refractory industries.

Together with you, we hope to work on products that define an industry and try to make our world even better.

Undensified Silica Fume

Undensified Silica Fume, which is made from a large amount of highly volatile silicon monoxide gas produced during the smelting process, is rapidly oxidized with air and condensed into silica dust.

85% Undensified Silica Fume

92% Undensified Silica Fume

94% Undensified Silica Fume

96% Undensified Silica Fume

99% Undensified Silica Fume