I had received several requests for a gargoyle creature for the garden so I sculpted this figure out of sculpting wax, painted it to see what I had, and as shown above, began the process of creating a two part silicone mold and a fabricated fiberglass mother mold (not shown) for support. Here you can see that I have cleanly established the seam line by using Kleen Klay and wooden blocks for support.
In the photo above, I have applied the initial detail coat of silicone and made certain that all areas have been covered including a predetermined area surrounding the sculpture so that you will have a lip of rubber that aids in the proper alignment of the two halves. Two additional thicker coats of rubber will be applied to give you a strong enough mold for many castings.
Here you have the cured rubber mold lying in the fiberglass mother mold flipped over with the back part of the sculpture now facing up, ready to repeat the above process. When this has been completed holes will be drilled through the fiberglass and rubber lip and joined, now ready for casting.