martapitucha Posted November 19, 2013 Report Share Posted November 19, 2013 Hi, I am looking for a cone 3 glaze to use over slip decoration ,on a gas kiln; the one I used contained zinc, 10 % and the brown slip came out greyish, awful. So I came up with a recipe which includes 19% borax. I¨ll be testing it, but I have a feeling it is too much borax. Here is the recipe: Potash feldspar.....45 Whiting..................11 Kaolin.....................16 Borax......................19 Zirconium siicate......9 I appreciate any advice you could give me Link to comment Share on other sites More sharing options...
bciskepottery Posted November 20, 2013 Report Share Posted November 20, 2013 If you are firing at Cone 3, you might find a copy of John Conrad's "Cone Three Ceramic Formulas: Clay, Engobe, Stain and Glaze" to be of interest. Published in 2006 by Falcon Company, San Diego, ISBN 935921-24-1. Link to comment Share on other sites More sharing options...
martapitucha Posted November 21, 2013 Author Report Share Posted November 21, 2013 Thank you Bruce Link to comment Share on other sites More sharing options...
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