Orient-Bronze.com
Title
orient bronze
Description
The lost wax process is a traditional method of casting bronze sculpture which goes back in time to something like 5000 years. It is still used today in the casting of bronze sculpture because of the ability to achieve very fine detail and deep undercuts although more modern equipment and methods are used nowadays.
Mould Once the clay original is finished you are then ready to take a negative mould from it using a flexible rubber type compound this is either painted onto the sculptured surface or poured between the clay sculpture and a plaster jacket. The mould should really be made in at least two parts or more depending on the size or complication of the sculpture. You now have a rubber negative mould supported by a plaster jacket this mould is going to make a hollow wax positive of the original sculpture.
Waxing up When the rubber/plaster negative mould is finished you are then ready to start applying melted wax to the surface of the rubber mould using a paint brush. After several coats of wax the mould is assembl -ed and cool wax is then poured inside to completely fill the mould. It is left a few seconds to increase the section thickness and then the rest is poured back into the melting pot, you now have a hollow wax positive. When the wax has solidified the cavity is then completely filled with plaster and grog, this is called the "Core" and is done to eventually achieve a hollow bronze casting approximately 1/4" inch section thickness.
