MICHAEL KEROPIAN BRONZE SCULPTURE
MAKING A RUBBERMOLD
Clay Blanket Mold Part 1
Preparing the Original
Clay Blanket
The original sculpture is mounted to a board.

The original is then coated with a barrier coat, like shellac and a separator of (wax) is applied.

There are many varieties of separators. The one that you chose is dependent on the original material and the type of rubber that will be used.

The sculpture is then covered with plastic wrap.

A blanket of clay approximately 1/4" is applied to the complete surface of the sculpture, (this will determine the thickness of the rubber later in the process). Keys are placed on the clay blanket as well as a pour spout and a button key. The keys will help register the rubber into the mothermold.

Metal flashing is then placed around the circumference of the clay blanket with keys. This will allow the plaster mothermold to divide into sections.

Plaster Mothermold
Plaster is then thrown, sprayed or brushed onto the clay blanket and metal flashing. This is called a splash coat. Burlap is generally added to reinforce the plaster and to attach a frame work of conduit or wood for structure.

More plaster and burlap are added around the edge of the mold, which will strengthen the edge for clamping and prying apart later.

ClICK HERE FOR PART 2
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MICHAEL KEROPIAN
392 Gipsy Trail Road
Carmel, New York 10512 USA
845-228-1306
michael.keropian@verizon.net
www.keropiansculpture.com

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