bronze casting process

Bronze Sculptures...    All pieces are cast using  traditional lost wax casting methods.    Bronze is melted at 1800 degrees and poured into molds made from  wax models.  Once cooled the bronze casting is assembled and patinaed.

Creating Bronze sculptures today
uses similar processes as antiquity.


Bronze sculptures, traditionally offered as limited edition castings by artists, are each considered original works of art due to the arduous process required for production.

The artist creates a sculpture in clay or wax.

The original sculpture is molded. Larger sculptures, or complex sculptures are cut into parts and molded separately. Each part will be cast separately and reassembled later in bronze.


The mold is made from a flexible silicon material. The mold is the negative of the sculpture. The soft, flexible material captures all the detail of the original sculpture created by the artist.
This mold is reused again and again until the entire edition has been cast. At that time the mold
is destroyed, thus insuring that once sold out, the edition will never again be produced.

The original sculpture is remove from the mold and Wax is poured into the mold. When the wax cools, this replica of the artist's original sculpture is removed from the mold. Any blemishes on the wax surface are meticulously removed. Now the wax sculpture resembles the original work of art, and it is then ready for investment.

Investment. This process is time consuming, requiring the wax replica to be dipped into a binder (like glue) and rolled in sand. Repeating this process several times builds a sand shell around the wax replica.

After the layering process is finished, the wax and shell are placed into a kiln. The wax warms to a gas state and burns out of the shell, simultaneously the sand shell hardens. The impression from the wax sculpture is left on the interior of the sand shell.

Molten bronze is then poured into the sand shell. This plaster like mold can withstand the intense temperature of the liquid metal. Once the bronze cools, the sand shell is chipped away from the bronze. The metal sculpture is examined to insure quality.

The parts of the sculpture are reassembled with the aid of welding torches, and air driven grinding tools. Once the sculpture is reassembled, the original texture is matched. A final inspection of the metal sculpture is made before coloration.

Patina is the traditional technique for coloring bronzes. This is an oxidation process. Chemicals are applied to the metal surface using heat. The bronze reacts to each chemical differently, creating a change in color to the metal surface. The variety of colors that can be achieved is vast. An almost limitless variety of colors can be achieved by this process

When the sculpture is completed, the artist may choose to present the sculpture on a wooden or stone base. Larger sculptures are traditionally placed in parks, gardens and entry ways to buildings or homes.

More Questions about the process? Call the Gallery and Ask!