What is mould in sculpture?

Mould in sculpture refers to a hollow form used to create a replica of an object or sculpture. It is typically made from materials such as plaster, silicone, or rubber, and is used to capture the details and shape of the original sculpture. The mould is filled with a casting material such as resin or plaster to create a duplicate of the original sculpture. Moulds are commonly used in sculpture to create multiple copies of a sculpture or to preserve the original sculpture for future reference.