The Casting Process
All bronze sculptures are cast by the "Lost Wax Method of
Casting" The basic Steps are as follows:
- A clay model is created.
- A flexible rubber mold with a rigid backing (mother mold) is
made of the clay original.
- Hot wax is poured into the rubber mold to get a wax duplicate
of the original clay.
- The wax pattern is repeatedly dipped into a ceramic slurry to
create a ceramic mold around the wax.
- The ceramic mold is fired to 1600 degrees Fahrenheit to remove
all the wax from inside.
- Bronze is melted at approximately 2000 degrees Fahrenheit and
poured into the ceramic mold.
- The ceramic mold is broken off to reveal the bronze casting.
Now the work begins.
- Sprues and gates are cut and ground off and casting imperfections
fixed. Pieces are welded back together, and sandblasted to prepare
- Patina finish is applied using heat and various chemicals to
oxidize the surface of the metal.