Alicja Posted November 3, 2016 Report Share Posted November 3, 2016 Help needed I'm trying to develop a SLIGHTLY runny transparent glaze for my mishima work but I am struggling! Does anyone have experience with adjusting transparent stoneware glazes (fired to 1260 C in an electric kiln) to make them slightly runny? Any help would be hugely appreciated... Link to comment Share on other sites More sharing options...
Min Posted November 3, 2016 Report Share Posted November 3, 2016 Hi Alicja and welcome. Alumina stiffens glazes, so to make them runnier you need to take out some of it. I'm guessing your glaze has kaolin in it, I would try reducing that in the glaze. Mix up a couple hundred grams of the base with 12% or so less kaolin then dip a tall test tile half way into the glaze (with lots of room for the glaze to run and a scrap bisque piece underneath it), then add kaolin in 2% additions until you get up to 2% less than the original glaze had. Somewhere in there should be runny enough. Might want to check for crazing if you take out a lot of it. Link to comment Share on other sites More sharing options...
neilestrick Posted November 3, 2016 Report Share Posted November 3, 2016 Alternatively, if your glaze has frit or Gerstley in it, run tests increasing it in 3% increments up to 12%. Usually 3-5% will have a very noticeable effect. Link to comment Share on other sites More sharing options...
Alicja Posted November 16, 2016 Author Report Share Posted November 16, 2016 Thank you very much That's very helpful, I have started testing and there is definitely progress! Link to comment Share on other sites More sharing options...
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