CERAMIC SHELL
Once the wax model is made, strips of wax are attached to create gates. This is how the molten bronze will ultimately flow through the final shell mould, into the cavity left by the wax.
The ceramic shell is made by making layer after layer of slurry and ground porcelain, which is allowed to dry. Then the shell is fired, and the wax melts out of the shell, leaving a sculpture shaped cavity inside. It is this cavity that is filled with molten bronze to make the final sculpture.