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Overglaze 2
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Microwave Kilns 10
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Bronze Clay 2
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General 17
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Kiln Installation 37
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Kiln Operation 60
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Digital Controllers 24
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Buying a Kiln 1
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Enameling 6
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Loading the Kiln 13
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Ceramics & Pottery 40
I have been using K23 bricks for raku.
K26 firebricks cool faster than K23 because the K23 firebricks are more porous and absorb more heat than the K26. But the difference in cooling rate is very slight.
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