lava in glazes
Posted 21 March 2013 - 02:10 PM
Posted 21 March 2013 - 06:17 PM
if you're trying to get the textured effect many of those glazes have, you can experiment with adding silicon carbide to your glaze; which volatizes in the glaze and forms those craters. look up "crater" glaze recipes for more info.
Posted 21 March 2013 - 06:53 PM
Does anyone have experience using crushed lava in glazes? I have seen the "fat glazes" pots from Germany and that is not what I am aiming for. I've been told lava fires at 1100 fahrenheit; is that correct? and how/is it possible to add color to lava, which I assume fires to black glass.
some what related. Im experimenting as we speak (type)
Posted 24 March 2013 - 05:02 PM
first test, crushed rock in kiln, second test, crushed and ball milled in kiln, third test crushed, ball milled, then sifted with fine particles tested. .... these are your base lines of what properties the material has by itself.
next, start to base glaze tests on that material. try to limit materials to your basic base blends of flux, glass former and clay to make something stable, then go for the glaze effects to make the most out of your volcanic material.
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