CinderSong Posted June 3, 2017 Report Share Posted June 3, 2017 Hello! I made some small sculptural pieces and fired them from green to bisque at cone 10 in a gas kiln. They had a nice, earthy tone caused by flashing that I was happy with. Since then, I've done more of the same style of pieces that I've made "the traditional way," i.e. fired to bisque in an electric kiln (cone 06), then glazed, then fired again at cone 10 in the gas kiln. Those glazed pieces sold much better than the original bisque pieces, so I would like to glaze them and refire if possible. I suppose my question would be: because I had fired the pieces from green to bisque at Cone 10 in the gas kiln, would it be possible to glaze and refire them at Cone 10 again? Are they too vitrified? They don't need to be food safe. If refiring at Cone 10 is not possible, could I do an underglaze at a lower temp? What about an iron oxide wash? What are some other methods to add color that might not involve firing? Thanks for the suggestions and help! Edit: It's a stoneware body that my employers mix up custom, so frankly I'm not sure what all goes into it. Link to comment Share on other sites More sharing options...
Mark C. Posted June 4, 2017 Report Share Posted June 4, 2017 Those pieces will not take glaze well at all. You could warm them up and glaze them let them dry and then glaze again when dry This option is a huge pain and the results are sketchy at best Since you have vitrafied the body you could rub iron oxide wet mix into the clay with say a sponge or any colorant for that matter.. The low fire option is not my area as I,m a high fire person. Is this body stoneware-or whiteware?.. Link to comment Share on other sites More sharing options...
CinderSong Posted June 4, 2017 Author Report Share Posted June 4, 2017 Thanks for replying, Mark. It's a stoneware body that my employers mix up custom, so frankly I'm not sure what all goes into it. I also know more about high fire than low fire, but I'm still learning. Link to comment Share on other sites More sharing options...
Mark C. Posted June 4, 2017 Report Share Posted June 4, 2017 With the iron wash you do not need to fire to cone 10 again You just need to set fire to a lower temp to make it stick Link to comment Share on other sites More sharing options...
CinderSong Posted June 4, 2017 Author Report Share Posted June 4, 2017 I'll try that with one of them to see how it comes out! Link to comment Share on other sites More sharing options...
Marcia Selsor Posted June 4, 2017 Report Share Posted June 4, 2017 I use to bisque my porcelain pieces for crystal glazes to ^10 to avoid shrinking on their pedestals and catch basins. You can add gum or cmc mixture to the glaze and spray it on or dip several times. Marcia Link to comment Share on other sites More sharing options...
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