TBayCeramics Posted October 12, 2018 Report Share Posted October 12, 2018 I am hand building plates using Laguna B3Brown 391 clay. I’m glazing them white and did a test fire with Laguna’s Colonial White at cone 5 medium speed but pinholes came out on all of them. Is there another glossy white glaze that would work better on B3 Brown? Is there something else I can do with the firing? B3 Brown seems to be a sensitive clay—it can reach any hire than cone 5 without warping. Any recommendations on glazing B3 Brown pieces would be greatly appreciated. Thanks Link to comment Share on other sites More sharing options...
liambesaw Posted October 12, 2018 Report Share Posted October 12, 2018 Bisque very slowly to burn out as much of the organics you can. That's the only thing that works for me with my iron clays. Link to comment Share on other sites More sharing options...
Min Posted October 12, 2018 Report Share Posted October 12, 2018 +1 for what liambesaw said. Especially slow the firing down between 1300F - 1650F, holding at 1650F for an hour will help also and ventilate the kiln well during the firing. Don't stack or nest the pots together, need lots of oxygen to cleanly burn the organics off. If cone 5 is the recommended cone to fire to I wouldn't go higher than this as these type of claybodies tend to bloat if overfired. Link to comment Share on other sites More sharing options...
glazenerd Posted October 12, 2018 Report Share Posted October 12, 2018 Look towards the bottom of page 2 for information on firing dark or red bodied stoneware. Tom Link to comment Share on other sites More sharing options...
liambesaw Posted October 13, 2018 Report Share Posted October 13, 2018 42 minutes ago, glazenerd said: Look towards the bottom of page 2 for information on firing dark or red bodied stoneware. Tom Good read, thanks. Link to comment Share on other sites More sharing options...
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