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Author: Tamara_Dozier, Contributing Editor
| Once I have my parting lines drawn in I will dust the latex mold with baby powder to make it easier to pull off the mother mold.
The material I use to make my mother mold with is a 2 part resin called Magic Sculp. It looks and feels like putty when you mix it and it dries as hard as bone. It's great for mother molds because it's easy to apply and it's light as a feather when it cures. |  |
 | Here is a picture of the first side of the mother mold finished. You see the wooden dowel? There will be 4 of those and they will become my built in stand when I am pouring the mold. To make this I simply mixed equal amounts of part A and part B of the Magic Sculpt until it was completely blended. I then applied it by pressing it in place on the latex mold. The mother mold is about 1/4 inch thick.
The Magic Sculp has to cure for about 2 hours before I can build the next section of the mother mold. |
 | Seven hours later and I now have 3 sections of my mother mold completed. Before I made each new section I applied petroleum jelly (vaseline) to the mother mold edges and dusted it again with baby powder. This prevents each section of the mother mold from permanently sticking to each other.
See how I sculpted the edges with a curve in them? This helps "lock" the mold together when I'm casting the sculpture. |
 | I have added 2 more section of my mother mold and it's now finished. Total time to make the mother mold was about 11 hours. (I must be nuts!) I'll let this cure now for 24 hours before I pull it all apart. |
| Here is what the mother mold looks like after I pulled it off the latex mold. I had to use a spoon to dig out most of the clay so I could get the silly thing off.
After I pulled the mother mold off I then pulled the latex mold off what was left of my original sculpture. |  |
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