LOST WAX CASTING

ABOUT

The goal of lost wax casting is to make a copy of an object in silver. For example, a plastic or tin ring could be used as a shape to create a silver ring.
A cast of an object (e.i. a ring) is created in rubber. Then, the mould is filled with wax. The wax cools, then is removed. The wax model is attached to a "tree", and then put in Plaster of Paris. Multiple works can be attached to the same tree. The process is then taken over by a pair qualified members. It is left until a Wednesday, when the wax is melted out to leave a hollow. Then, the silver is heated to pouring temperature, the Plaster of Paris mould is placed over a suction pump, and the silver is poured into the mould. The branches of the tree allow the cast of the object to fill with silver, and the air in the mould is sucked out by the suction pump. The filled mould is placed in water to cool, and then broken open to reveal the silver object attached to a silver tree. The object can be broken off the tree and finished up with the silver working equipment, and the silver in the tree can be melted down and reused.