mousey Posted June 17, 2016 Report Share Posted June 17, 2016 So, Ive been playing with a few 'lava' style glaze recipes to obtain a similar effect to this: Using silicon carbide yields some wonderful bubbling and crawling but the color is pretty much dark grey or darker at cone 5/6. Lava recipes..: slip 100 silicon carbide 10 calc. carbonate (whiting) 25 feldspar 50 epk 12.5 silica (quartz) 12.5 silicon carbide 12.5 Now something I read, is barium sulfate can be a substitute for silicon carbide here. Which sounds great to me because its cheaper and lighter colored, and I want to get as close to white as possible with the glaze. However, nothing I do with barium sulfite in the above recipes has the same effect, all I end up with are these weird peeling crawls that look very little like lava and very much like scar tissue. Interesting maybe but not really the direction I wanna go. So Im wondering if anyone here has actually use barium sulfate specifically for a good lava glaze effect? Thanks! Link to comment Share on other sites More sharing options...
glazenerd Posted June 17, 2016 Report Share Posted June 17, 2016 No, but I have used it to create this unusual effect. It was spot brushed on after the glaze had dried. It created the matte/gloss offset. 0.50% as I recall. Dang-giving away secrets. Nerd Link to comment Share on other sites More sharing options...
Marcia Selsor Posted June 30, 2016 Report Share Posted June 30, 2016 there are no secrets Link to comment Share on other sites More sharing options...
ayjay Posted June 30, 2016 Report Share Posted June 30, 2016 Using silicon carbide yields some wonderful bubbling and crawling but the color is pretty much dark grey or darker at cone 5/6. I've recently started playing with SC, my first test only used 3.4% SC and fired to ^6 it was white. (There's also a bit of green glaze showing at the top). Using more SC has just given me a nasty black result. I would try reducing the amount of SC. Link to comment Share on other sites More sharing options...
mousey Posted July 15, 2016 Author Report Share Posted July 15, 2016 Using silicon carbide yields some wonderful bubbling and crawling but the color is pretty much dark grey or darker at cone 5/6. I've recently started playing with SC, my first test only used 3.4% SC and fired to ^6 it was white. (There's also a bit of green glaze showing at the top). Using more SC has just given me a nasty black result. I would try reducing the amount of SC. lava.jpg you know what? that's gorgeous, and i'm taking your advice into the shop tonight. thank you. im well into that dark black vibe and i got some really interesting textures but couldnt get that lovely color you got, which i reallllly wanted. Link to comment Share on other sites More sharing options...
Marcia Selsor Posted July 15, 2016 Report Share Posted July 15, 2016 I used up my likes. Great lava glaze! I used SC for local reductions at ^10 way back when, but in much lower quantities. . Interesting glaze. Marcia Link to comment Share on other sites More sharing options...
Marcia Selsor Posted July 15, 2016 Report Share Posted July 15, 2016 No, but I have used it to create this unusual effect. It was spot brushed on after the glaze had dried. It created the matte/gloss offset. 0.50% as I recall. Dang-giving away secrets. Nerd Wow Glazenerd. It looks like out of focus background. Really interesting crystals. Marcia Link to comment Share on other sites More sharing options...
Babs Posted July 17, 2016 Report Share Posted July 17, 2016 Nice effect, how thick are you applying lava glazes anyone? Got the ocean theme thingie to make stuff for, working on the mudflats, sea spume is what I see here Link to comment Share on other sites More sharing options...
fontaine Posted January 28, 2020 Report Share Posted January 28, 2020 Hi what is the grit of the silicon carbide used, 400? Link to comment Share on other sites More sharing options...
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