How To Fuse Pottery And Glass

How To Fuse Pottery And Glass

Are you interested in pottery and would like to experiment with fusing it with glass? One of the most common pottery questions asked by individuals is how to undertake the process of fusing glass into pottery. The process of fusing glass in a kiln requires proper understanding of the functions of the kiln and sufficient knowledge of glass working.
Glass work requires proper care and alertness as it may expand or even crack during the process. One of the most important factors in glass fusing is the C.O.E (Coefficient of Expansion) of the glass. Generally cracking is a result of imbalanced mixture of glass with different C.O.E. We are going to discuss some important steps involved in fusing glass in your kiln.

How to fuse glass in your pottery kiln

The process of fusing glass in pottery kiln requires both skills as well as alertness during the process. Some of the important things to be considered in the process are discussed below.

  • The first step of the process is to apply kiln wash inside the interior walls of the kiln with the help of a glass haik brush. Make sure to brush the kiln in an upward motion. The second layer should be applied while brushing inside the kiln at an angle of 90-degrees. Repeat the same process five times and then heat the kiln for 15-20 minutes. Close the vent of the kiln after allowing it to cool down naturally.

  • Now you have to heat the kiln at 500 ̊ Fahrenheit with the kiln lid open halfway. The main purpose of heating the kiln is to get rid of the additional moisture in the kiln.

  • Before the fusing process, place a few drops of honey over the kiln shelf which will hold all the pieces of the glass together during the process. The next step is to heat the kiln. Make sure that the heating is done gradually by starting at 900 ̊ F per hour and gradually reaching up to 1450 ̊ F.

  • You need to fuse the glass for nearly 20 minutes inside the kiln. After heating, it is important that the glass is vented quickly by opening the lid off the glass completely. Now heat the stand for 1,000 ̊ F for 5 minutes and then close the lid while plugging the viewing hole. It is important for the temperature to rise up to 1,200 ̊ F.

  • Now cool the kiln at a temperature of 900 ̊ F and allow annealing for nearly 30 minutes at this temperature. In the end, remove the glass after it reaches room temperature. Make sure that the glass is not removed until cooled properly otherwise it will crack.

There is no doubt that there is some hard work required in the process, but it sure can be fun. It is important to be careful throughout the process in order to ensure both the integrity of the glass and your own safety. Maintain proper safety regulations and wear safety clothes, glasses, and other equipment. It is advised to work under expert guidance until you gain expertise in the process.

November 25, 2013


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