Malinda Posted June 13, 2018 Report Share Posted June 13, 2018 This is once-fired glaze @ 900 Celsius. How I eliminate that defect??? Link to comment Share on other sites More sharing options...
JohnnyK Posted June 13, 2018 Report Share Posted June 13, 2018 Actually, Melinda, the "defect" looks pretty cool to me. I would record everything you did to get that look even though you weren't trying. Then I would try to find another glaze with the same color and start testing again...You did run some tests on this glaze, didn't you? JohnnyK Link to comment Share on other sites More sharing options...
Min Posted June 13, 2018 Report Share Posted June 13, 2018 Looks like the glaze is shrinking too much for the claybody. Were there fine drying cracks in the glaze before firing? Do you have the glaze recipe and if so can you post it? Link to comment Share on other sites More sharing options...
neilestrick Posted June 13, 2018 Report Share Posted June 13, 2018 I'm thinking this is related to the application to raw clay, like there's something going on with the clay being wetted during the glazing process. Have you tested the glaze on bisque? Commercial glaze, or did you mix it? Post the recipe if you mixed it. Link to comment Share on other sites More sharing options...
oldlady Posted June 13, 2018 Report Share Posted June 13, 2018 it looks like leather, what is the defect in your opinion, malinda? Link to comment Share on other sites More sharing options...
Babs Posted June 13, 2018 Report Share Posted June 13, 2018 If the defect is the blog of matting glaze to the left think it is a stirring the glaze properly defect. I'm assuming the all over texture is meant.... Are you dipping or brushing ?g Link to comment Share on other sites More sharing options...
glazenerd Posted June 13, 2018 Report Share Posted June 13, 2018 Malinda is from Sri Lanka if memory serves? Which means laterite clay is being used. Typically laterite runs 32-40% alumina and 8-15% hematite= FeO3. It cannot be fired over 900C because the hematite content. Min- background info on the clay to help you figure out the glaze side. That said: I like the glaze effect myself, unique pattern. T Link to comment Share on other sites More sharing options...
Tyler Miller Posted June 14, 2018 Report Share Posted June 14, 2018 I think Neil has the right idea. I think this has to do with glaze application to green ware. It was maybe applied too thickly? Link to comment Share on other sites More sharing options...
Magnolia Mud Research Posted June 14, 2018 Report Share Posted June 14, 2018 If the defect is the small nearly bare spot about one third down from the top and just a bit to the right of the vertical center line, reapplication of some glaze and a refire probably should solve the problem. Refiring has its own set of concerns such as glaze movement (excess running), body slump, color and texture changes, ... . My guess is that the glaze was not adhering to green ware at that spot. Non-adherence could be dust, oily spot, finger mark, ... . LT Link to comment Share on other sites More sharing options...
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