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200 Mesh Coatings Foundry Sand



The coastings foundry sand is a raw material for foundry coastings in the lost foam process(policast process), also known as foundry coasting sand. It is a fine sand, alias high alumina powder, which is filtered by 200 mesh screen.

Ingredients: alumina, bauxite as raw material, processed by high-temperature calcination, aluminum smelting, milling and selected with 200 mesh screen.

Production process of coated sand can be a dry blend method, cold coating method, temperature coating method and a thermal coating method four stages, but now the commonly used production method are thermal coating method.

Thermal coating process: Heat the raw sand to a certain temperature first, then mix it with the resin, solution and calcium stearate, cooling, crushing and screening. Different mixing system are adopted due to differences in formulation.


1. Prevent mechanical sticky sand and thermochemical sticky sand;
2. Good wettability and adhesion;
3. High temperature and strength;
4. Fast drying;
5. Small gas evolution;
6. Good coating performance.

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 Address: Gaomiao, Mihe Town,
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Through our unremitting efforts over the years, fused ceramsite sand has been recognized by casting experts in both domestic and international. Fused ceramsite sand produced by Gongyi Yuanyang Ceramsite Co., Ltd. has exported to Japan, the United States, Germany, South Korea, Japan, Malaysia and other countries.

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