supply professional high end stamping parts_supply professional high end stamping parts

3. Reducing Metal Penetration One of the potential issues in casting is the penetration of molten metal into the sand mold, leading to defects like metal penetration or drop-out of sand particles. Effective facing sand is designed to minimize this penetration, preserving the mold shape and preventing unwanted inclusions in the final product. A well-constructed facing sand layer can create a barrier that helps to ensure a defect-free casting.