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Normally, so called shelf papers are used or special coatings called kiln washes are used to prevent molten glass from adhering to the kiln shelf while it is being fired. This is expensive and time consuming. Can a different material be used that will not allow the molten glass to stick to it, such as a type of graphite? This would also improve the appearance of the backside of the finished glass project.

Walter Quigley
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I am unsure about the use of graphite or other materials for this purpose. However, kiln wash is a low cost solution that should give you the same quality as kiln shelf paper.

http://www.bigceramicstore.com/info/ceramics/tips/tip96_kiln_wash.html

http://ceramicartsdaily.org/firing-techniques/soda-firing/the-many-layers-of-kiln-wash-how-to-find-the-best-kiln-wash-for-your-firing-temperature-and-methods/

ericnutsch
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