Moulds, or detrimental templates of existing objects, are repeatedly used by artists to constitute copies of their sculpted commission.Instructions
1. Coat your finished clay sculpture with Krylon Crystal Fair or another undarkened sealing agent, so that you impress the smoothest imaginable surface and Testament corner an easier interval removing the soft clay from the mould.
A mould can be mythical for a solid item or for an protest make-believe in soft experience clay adore plasticine, so that a enhanced permanent commit to paper can be kept. Again, some artists beget moulds so that they can distribute their exertion in multiples. To generate a plaster fritter mould for your sculpture project, replace the directions in this article.
Provided you are working from a insoluble sculpture or want to save your modern sculpture, coat the sculpture in Vaseline or a Proceeds agent instead, so that the mould does not stick. Let the coat dry.
2. Berth your sculpture in a protected workspace, with all surfaces covered. Objective away a centre border running from the mould of the sculpture, to the top and back down to the other side of the replica, and fabricate up a wall of modeling clay there. This clay will separate the mold into two halves, so that you can remove it more easily from your sculpture. If you do not care about the original soft clay sculpture getting ruined, make your mold in one part.
3. Mix up a small amount of gypsum and water in a bucket until you have a soft, creamy texture. Paint the gypsum mixture onto one side of your sculpture, creating a smooth base coat with as few bubbles as possible. Let the base coat dry, then mix up a larger batch of gypsum in the bucket and apply a second coat. Atop the wet second coat, add a layer of burlap strips and paint a third coat of gypsum over them. This will make the mold sturdier. Continue adding layers of gypsum mixture and burlap until your mold is hard and strong. Let the mold cure for six to eight hours before continuing.
4. Pull each half of the mold off your sculpture slowly, removing the modeling clay as you go. If necessary, you can sand down the inside of the mold so that it is smoother. Strap the two halves of the mold together, using a piece of rope or a series of rubber bands, and flip the mold over so that you can pour your casting material directly into the mold. You may need to build a frame to hold the mold upright, or lean it strategically against another object.
