How To Make a Brush‑On Mold of a 3D Hollow Model

This example is shown with a puma head cast out of concrete.

Begin by cutting several slices of water clay to use as a filler. Center the head on a piece of melamine board for a base and then fill the cavity with clay to eliminate the void at the back of the head. Two cut off bolts are enbedded in the clay to serve as place holders for later use. Apply SuperSeal® to the model and the clay to seal the porousity.