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Ceramics and Refractories
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Silica is essential to the production of both ceramics and refractories. When manufacturing ceramics, the use of silica (SiO2) helps modify thermal expansion, regulate drying and shrinkage, and improve structural integrity and appearance. Silica is necessary for both glazing and body construction of products such as tableware, sanitary ware, and floor and wall tiles. In the ceramic body, silica is the skeletal structure upon which clays and flux components attach. In addition to skeletal formulation, Silica is often used to alter the properties of other products to increase thermal stability, the longevity of the product, and even provide pigment extension, thereby reducing demand for high-priced pigments such as titanium dioxide. Ceramic products created using SiO2 demonstrate increased performance with greater brightness, reflectance, color consistency, and absorption of oil.

Silica products are also used as primary aggregates in shape and monolithic-type refractories. The silica provides resistance, in high-temperature situations, to acidic attack in industrial furnaces. The use of Silica allows ceramics and refractories to retain their key characteristics at a lower cost while providing more benefits to their producers.