Marge Posted January 28, 2019 Report Share Posted January 28, 2019 I have used a (grey) glaze for awhile and the last 2 firings (cone 6) it has dripped off of my pottery. It is the overlapped layer on the lip of my pots. The first layer dried overnight prior to dipping in the second (grey) layer to the lip. I make my own glazes and they have always worked well for me. The temp and amt of hours that my kiln is firing has always been approx the same. Perhaps an extra 5 minutes to hit the temp lately. I hate to switch the elements if I don't have to. One other glaze has recently slipped off and pooled on my kiln shelves as well. (That situation was my first color... the color on the lip stayed put). This all may be confusing, but thanks for trying to follow it! Thanks! Margie Link to comment Share on other sites More sharing options...
Mark C. Posted January 29, 2019 Report Share Posted January 29, 2019 I suggest a thinner second dip layer-maybe dip it when the other layer is wet so not as much soaks in or thin the second layer glaze. The idea is a thinner coat. Link to comment Share on other sites More sharing options...
liambesaw Posted January 29, 2019 Report Share Posted January 29, 2019 Are you using witness cones to make sure both the bisque and glaze firings are on point? Link to comment Share on other sites More sharing options...
Marge Posted January 29, 2019 Author Report Share Posted January 29, 2019 No, I will with my next glaze firing. If it’s hitting the correct temp 2215 degrees, could it still be incorrect.? Would that mean the my Skutt readout would be incorrect? Thx! Link to comment Share on other sites More sharing options...
liambesaw Posted January 29, 2019 Report Share Posted January 29, 2019 Well if your glazes have been fine until just recently my thought was that maybe the thermocouple reading is off on the controller. If it's overfiring by a cone or two it might cause a glaze that previously didn't drip to drip. Using witness cones will just verify that it's reaching the desired cone and eliminate that as a possible cause. On the bisque side it would be the opposite. If your kiln isnt reaching cone 04 (or what you normally bisque to), it could be absorbing way more glaze than you're used to, causing you to accidentally over glaze. Link to comment Share on other sites More sharing options...
neilestrick Posted January 29, 2019 Report Share Posted January 29, 2019 @Marge It's probably not a firing issue. You can't let the first layer dry overnight. The second dip needs to be applied before the first dip has dried completely. Otherwise the second dip can mess up the bond with the clay and it will fall right off the pot in the firing. Link to comment Share on other sites More sharing options...
Marge Posted January 29, 2019 Author Report Share Posted January 29, 2019 Thank you so much. I have a show Wednesday night. I am not attached to the pots that are going in my last glaze firing, but would you suggest trying less of a hold? Right now I have an eight minute hold. I just dipped the second layer while the first layer was still slightly wet. Link to comment Share on other sites More sharing options...
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