Patent

Inorganic Coated Sand

PATENT

Inorganic Coated Sand

Inorganic coated sand includes: a refractory aggregate; and an inorganic binder layer formed on a surface of the refractory aggregate, wherein an inorganic binder contains at least one selected from sodium silicate and sodium metasilicate, the inorganic binder layer contains a calcium compound, and a Ca content in the inorganic binder layer is 3% by mass or more and 45% by mass or less.

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