Mould Making

Wax Work

Ceramic Shell

The Pour

Metal Finishing/Patination

The sprue system and wax positive are coated with a liquid whose ingredients include sodium
silicote. The liquid is combined with molicite granules to form an extremely hard shell
around the wax when it is dry. The shell is built up using five or six layers like the above,
and backed up with fibre glass matting in the liquid, so that the resultant shell is strong enough
to take the heat shock it will receive later. The inside cavity of the hollow
wax positive is filled with a plaster-based mixture which is called core.

The wax is then melted out of the ceramic shell using a high powered blow torch heated
up in a kiln leaving a negative space in the shell ready to receive the molten bronze.