Casting is a manufacturing process in which a liquid material is usually poured into a mold which contains a hollow cavity of the desired shape, and then allowed to solidify.Our melt film precision casting sand is developped based on brown fused alumina or White Fused Alumina and with special technology. It has high refractoriness, low thermal expansion coefficient, good thermal stability, strong air permeability, high intensity, easy to shell, high casting finish. It can substitute Zirconia sand(powder) with much less cost, and the recovery ratio is high as well. It can be mainly applied to the melt films and silica-sol technology of jewelry,handicrafts,stainless steel products,watched,glasses,aluminum die casting industries,and can be processed in the line with the demands of the clients. Main Sizes used are 200mesh,325mesh or others available upon request.