How To Make a Brush‑On Mold of a 3D Hollow Model
Step 9: Preparing Mold For Casting
Clean the rest of the clay from the cavity and apply Sonite® II Wax to make a plug. Also apply Sonite® II wax to the bolts and nuts that are threaded halfway onto the anchor bolts. Use drywall screws to secure a board across the mold and will help pull the plug out.
