What is Lost foam casting?

Zzh756315 Sep, 2025Other

Lost foam casting is an advanced precision casting process. Foundries use foam plastic (usually polystyrene (EPS)) to create a mold that same to the part’s shape. Factory use dry sand placed directly into a sandbox to create the mold. During iron or steel pouring, hot molten metal displaces the mold and vaporizes the foam pattern, resulting a casting parts that has the same shape of the mold.