1/8” paper is good for many firings. Does not contain asbestos and DOES NOT need to be pre-fired. MADE IN USA. One 12" x 12" Sheet. CERAMIC FIBER PAPER Ceramic fiber paper is made by mixing ceramic fibers in an organic compound and rolling it into sheets of various thickness. It’s most commonly available in 3 mm, 6 mm and 9 mm thick. It can be used as a separator the same as kiln paper and is often preferred because it is soft and allows for compression expansion during the kiln firing. It is also used to create sculptured bas relief texture in glass. Smelled foul while firing · This is normal. When the organic compounds in the kiln paper are burning off it smells like burning vegetation. The smell goes away when the organic materials finish burning off. Turned black while firing · It turns black when the organic compounds in it burn off at about 500°F (260°C). No reason for concern. It returns to white further along in the firing cycle. Turned spongy after firing · This is normal. The kiln firing burned out the organic compounds that held the ceramic fibers together. Left a rough surface on the glass · Once the organic compounds have burned off the molten glass adopts the texture of the loose ceramic fibers and leaves a texture like an orange peel. Spraying on boron nitride before firing will produce a much smoother finish. Fibers embedded in the glass · Long hold at high temperature will allow ceramic fibers to embed into molten glass. This is often a problem with high temperature firings like mesh melts and combing. SUGGESTIONS Some users vent their kiln during the burning stage. Some don’t. It’s a personal choice and makes no difference to the results.
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