KILN-FORMING PROCESSES AND TEMPERATURES

Process

Definition

Fahrenheit

Full fusing

Joining two or more pieces of

glass by heating until they

flow together

1450 to 1550

Tack fusing

Fusing until the glass just sticks together, with each piece retaining its individual character. 

1350 to 1450

 

Slumping

Shaping glass by bending it over or into a mold

1200 to 1300

Combing

Manipulating glass by raking a tool across the surface of  molten glass  

1650 to 1750

Fire polishing

Heating glass just enough to round the edges and give it a shiny appearance
at 1400 degrees it can melt, stay just below 1400

1300 to 1395

Kiln casting

Fusing small pieces of glass (called "frit") inside a mold

1500 to 1600

Pate de verre

Fusing a paste made with small pieces of glass inside a mold

1300 to 1500

Glass casting

Melting liquid glass into a mold

1500 to 1700