potteryperson1992 Posted May 13, 2015 Report Share Posted May 13, 2015 Hi! I used Salt buff Glaze and a clear glaze together and the results were a bunch of semi sharp bubbles all over the clay body! The Clay I used was a brown clay. ( I can ask at the studio if needed) What do you think the problem might be? Do the glazes not go together? If so why not? Thanks!! I can upload pictures if needed, ~Lena Link to comment Share on other sites More sharing options...
bciskepottery Posted May 14, 2015 Report Share Posted May 14, 2015 Picture(s) would be helpful. Also, your firing schedule . . . do you do a hold at top temperature? Slow cooling? Link to comment Share on other sites More sharing options...
neilestrick Posted May 14, 2015 Report Share Posted May 14, 2015 Are these commercial glazes or something you mixed yourself? What cone? What type of firing? Link to comment Share on other sites More sharing options...
alabama Posted May 14, 2015 Report Share Posted May 14, 2015 The two glazes did not like each other. Make a lot of test tiles and test glazes as you're firing the regular loads. A friend of mine made over 12 Empty Bowls to be used as test tiles with similar results. One of her glazes was a Shino glaze plus something else. And though it was only 12 to 16 bowls, she can't get much help with the bowls in the first place. Make lots of tests and put results in a journal. Good luck. Alabama Link to comment Share on other sites More sharing options...
timbo_heff Posted May 15, 2015 Report Share Posted May 15, 2015 Sharp little volcano bubbles come from either cooling to quickly or from overfiring the glaze. Link to comment Share on other sites More sharing options...
Chantay Posted May 17, 2015 Report Share Posted May 17, 2015 I have a very tempermental commercial glaze that does this. It has a firing range from cone 5 to 5 1/2. Did you use witness cones? Link to comment Share on other sites More sharing options...
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