A mould enables wax replicas to be made of the original sculpture and makes possible the casting of multiple bronzes (editions) of the same object.
Moulds are composed of two parts:
- A coating of rubber, which captures in negative the form and surface texture of the original sculpture (even the fine imprints of fingerprints) and an outer coating of plaster or resin (‘the ‘jacket’), to support the flexible rubber.
- The number of sections in which a mould is made is dependent upon the size and form of each individual sculpture.
After the mould is removed, the original model is then retained for reference only and is no longer used in the casting process.