Using plaster elements in fused glass is an easy way to add variety to your basic stock of molds and shapes. The little plaster elements are made using a mold, and a mixture of pottery plaster and silica flour in a 1:1 ratio. However, you can also achieve excellent results with basic plaster of paris.
Molds can be made with a variety of different mold materials, including Mold n’ Pour, or latex liquid mold making material. You can also make molds using silicone caulking and a few other ingredients.
The plaster elements should be dried thoroughly and then sanded flat on the bottom (wear a mask) to avoid overhangs. Place the elements under your glass and fire to a full fuse.
After firing, when piece is completely cool, use a mix of vinegar and water to remove the plaster from your design.
Plaster can also be piped out of a pastry bag onto a piece of thin-fire, or a kiln shelf and then fused over.
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