Shell moulding is a process where fine silica sand is coated with thermosetting resin. When this sand is brought in contact with high temperature metal pattern, it converts into the shape of the pattern, with high strength.

Shell molding is a casting process that uses resin-coated sand to create thin, strong molds (shells). These molds are formed by heating a metal pattern, allowing the sand-resin mixture to bond and create a rigid shell. The process is ideal for producing complex and high-accuracy components.