Wednesday, July 11, 2012

Continuing "Celebration" -a complex process, mold-making.

Molds for Celebration
4 separate molds for one sculpture
Close-up of rubber with Shims (keys)
Shims separate the rubber, and later
the plast
Print coat (blue) with 1st rubber coat
inside of main mold
It's been about 6 weeks, the four molds for the wax of "Celebration" have been delivered and the first wax is in process.  The interspersed pictures here are the mold in progress. The arms, and her leg and head, are removed to allow later access to the wax figure in the dressing process, The blue rubber, called the print coat, comes first - it captures all the little details that will show in the final bronze.. The shims, called keys, which will separate the parts of the mold are placed early in the process.They separate the rubber, as well as the final plaster that holds the shape of the rubber  The keys have bubbles that will fit together to align the plaster parts of the mold.  The plaster is developed with multiple coats, with reinforcing burlap in at least one of the later coats. Once the plaster is dry, it is opened with fine cutting to divide the first print coat  and rubber to separate the parts.  The clay is then pulled out (usually destroyed at this point), and the final result is the open mold. Holes are drilled to place the bolts which will tighten the parts together when pouring the wax into the mold.This is quite a complex mold, and as I have said before, the moldmaker, Brian Honeycutt, can figure it all out  - in posing the sculpture, I don't have to worry about simplification.
Plaster bolted together
On to the wax-making process next!





1 comment:

  1. Marianne, the description of the mold-making of the "celebration" is extremely interesting and very informative. I really appreciate the effort of describing it and taking the pictures. Thanks for sharing. Rachel

    ReplyDelete

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