How Do You Fuse Glass In A Ceramic Kiln?
Fusing glass in a kiln requires knowledge of glass working and familiarity with kiln functions. Glass expands during the fusing process and can crack when heated too quickly or too long inside the kiln. Determining the coefficient of expansion decreases the likelihood of cracking glass while fusing inside a kiln. The coefficient of expansion, commonly referred to as the “C.O.E.,” measures the rate of glass expansion for each type of thickness of glass prior to fusing. Kilns must be set to the corresponding C.O.E. guide temperatures to have successful results when fusing glass. Do not mix glass that has differing levels of C.O.E., or cracking will result. Glass and kiln instructions guide artisans in determining the C.O.E. and should be followed to the letter when fusing glass. Apply kiln wash to the interior of the kiln with a glass haik brush. Brush the kiln wash in an upward direction only. Add a second layer of kiln wash, brushing at a 90-degree angle inside the kiln. Repeat step, b
