the circle casting_the circle casting

Facing sand is a fine-grained material applied to the inner surfaces of a sand mold. Its primary function is to provide a smooth, impervious barrier to the molten metal, enhancing the aesthetic finish of the cast product. Typically, facing sand consists of silica or other fine materials mixed with various binding agents to improve its adhesion and durability. The choice of facing sand can significantly influence the outcome of casting operations.