And here begins the plaster mother mold section of the moldmaking process...First you need:
A little about the plaster, we're using a mix of FGR and pottery plaster (Usually we use molding plaster instead of pottery plaster but they seem to work the same). We dry mix it first and then use a 1:3 ratio for water to plaster (4lbs water:12lbs plaster). We add the plaster to the water, let it soak in for a little while and then mix it using a mixer on a drill. (Using the mixer gives you a nice consistency.)We then use brushes to paint up the first coat of plaster (as seen above), staying within the shim of section we're working on. At first the vaseline resists the plaster a bit which is always a pain, but as it thickens it stays up.