Questions & Answers

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7 thoughts on “Questions & Answers”

  1. Interesting as I’ve made puddles several times using kiln paper & haven’t seen any negative results. I’ve refired the same puddles several times – upside down or after cutting/grinding – and gotten beautiful results. Don’t understand what the problem of using kiln paper is.

    1. I have heard it suggested (not my idea here) that putting dry ice, which you can buy, in the bottom of the kiln would push out the air as the dry ice ‘melted’ and generates gaseous carbon dioxide. Carbon dioxide is heavier than air so should stay in the kiln during firing. Plug your peep holes, close the lid, let the dry ice evaporate completely, then fire the kiln. Do not disturb the CO2 by opening the kiln until it has cooled.

      The CO2 will expand at fusing temperatures and then shrink as the kiln cools so some air will be drawn back into the kiln during cooling. However, by this point the copper should be well bonded to glass and protected from oxidation by any air. Exposed copper may turn black but the copper bonded inside glass should not.

      All this is theoretical, I have never tried it. A small test in a Firebox 14 that has no peephole might be a good way to see if it works!

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