Wednesday, September 12, 2012
06 Waste Molds Nº 3
Because moulage waste molds are alginate based, they will shrink over time. Therefore, it is necessary to cast the carving wax as soon as possible after making the mold. However, I am not going to go into detail about carving wax until the next series (07 Carving Wax). Previous posts about carving wax can be found using a search for the carving wax label.
My wax pot consists of an old aluminum pressure cooker pot that no longer has a lid or a handle, and an electric hot plate. I use an old pair of heavy leather gloves when handling my wax pot. I try to pour the wax into a smaller pot for pouring, if I can. Click on any image to enlarge it.
Here are the banded moulage molds poured with carving wax. I give the wax some time to cool before removing the casts from the molds.
These are the cast carving wax hands beside the original oil-clay hands. These were good molds, so the casts have a minimum of flashing.
This is another view of the cast hands.
After the carving wax casts are removed from the moulage molds, I cut the moulage up into small chunks (no larger than 1/2 inch cubes) and put it back in sealed containers, to keep it from drying out. The whole idea behind using moulage waste molds is that moulage is reusable, so this is a very important step.
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