Foundry Sand
Sand is the primary refractory used in Mold and Core applications, possessing good refractory properties, and the ability to be bonded together by resin or clay into complex shapes, then break back down again to grain size and shake out of the finished casting after the metal has solidified.  

The American Society for Testing and Materials (ASTM) and the American Foundrymens Society (AFS) classify sand by particle size.  Sand is generally classified as any none metallic mineral aggregate, which has a sieve size between the 12 and 270 mesh.

Because the Foundry Industry is the biggest consumer of our products, Manley Bros. unique blending and sizing capabilities are ideally set up to produce tightly controlled, consistent quality grades of sand, which possess the qualities required of a good foundry sand.

The round grain clean silica sand blends produced range from 30 - 145 GFN. They possess excellent density, permeability, and two three or four screen distributions.  A full range of specifications is available upon request, or contact us to develop a blend for your specific needs.