KILN CAST GLASS PROCESS

Discover the stages of production required in order to create sculptures in Kiln Cast Glass (also known as pâte du verre).

 
 
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Stage 1: Sculpted in Clay

The sculpture begins with an original work created in clay.

 
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Stage 2: Molding Process

To preserve the form of the clay piece, a 2 piece silicone rubber mold is made to reproduce the exact form down to fingerprint detail.

 
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Stage 3: Wax Casting

A wax cast is created by brushing hot molten wax into the silicone mold. This creates a perfect copy of the original clay sculpture in wax.

 
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Stage 4: 2nd Molding Process

A second mold is created, this time around the wax sculpture using a heat resistant plaster-based material. The wax is then melted out, leaving a perfect negative impression of the original clay sculpture.

 
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Stage 5: Glass Selection

The exact amount of glass required to fill the mold is measured precisely. The colors and size of the glass pieces are selected for the desired color effects.

 
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Stage 6: Kiln and Cooling

The glass-filled mold is placed into a ceramic kiln. The glass is brought to melting temperature and then very slowly cooled over a matter of days or weeks.

 
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Stage 7: Demolding & Finishing

The plaster mold is chipped away, revealing the solid cast glass sculpture. The work is then sand-blasted and polished.

 
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Final Work

The finished glass sculpture is solid kiln cast glass, allowing for transparency of light.