Lynettes Posted March 27, 2014 Report Share Posted March 27, 2014 I am hopping somebody can help me out with a dilemma I have concerning a lava glaze I have got from ceamicsarts daily. There are two versions of this cone 6 lava glaze. One says 0 .34% silica carbide and the other says 34%. The current stoneware one I am using used 2%, so one seem a bit low and the other way to high. Thanks for any help avaibale. Lyn Link to comment Share on other sites More sharing options...
mregecko Posted March 27, 2014 Report Share Posted March 27, 2014 Can you provide the whole recipe, in both forms? Link to comment Share on other sites More sharing options...
TJR Posted March 27, 2014 Report Share Posted March 27, 2014 I am hopping somebody can help me out with a dilemma I have concerning a lava glaze I have got from ceamicsarts daily. There are two versions of this cone 6 lava glaze. One says 0 .34% silica carbide and the other says 34%. The current stoneware one I am using used 2%, so one seem a bit low and the other way to high. Thanks for any help avaibale. Lyn Here we go again. Lyn-you are not hopping, you were hoping, unless you are currently standing on one foot. Please reread your post and "edit!" Available- not avaibale. Sheesh. TJR. Link to comment Share on other sites More sharing options...
PeterH Posted March 27, 2014 Report Share Posted March 27, 2014 Lynettes, Can you point me to the 34% one? A quick search finds two printings of the 3.4% http://ceramicartsdaily.org/ceramic-glaze-recipes/mid-range-glaze-recipes/marilees-lava-glaze-cone-6-oxidation-or-reduction/ http://trishakyner.files.wordpress.com/2013/08/15cone6-glazerecipes.pdf ... and one of 0.34% http://www.ceramiccenter.hu/pages/u/files/10cone6recipes061109%2020101220.pdf As the 3rd ref seems to be an earlier version of the 2nd ref (perhaps corrected on reprinting), I would be tempted to go with a trial at 3.4% BTW the 1st ref has the plaintive comment Can anyone clarify the percentage of Silicon Carbide? I’ve seen this in three other locations and they list it as .34% vs 34% I’m not a mathematician but it seems like a big difference. Thx Regards, Peter Link to comment Share on other sites More sharing options...
mregecko Posted March 27, 2014 Report Share Posted March 27, 2014 Thanks for linking to the recipe, Peter. I'd think it either has to be 3.4% or 0.34%... 34% would take it out of the realm of an "addition" to the formula, and it becomes a major ingredient. It seems odd that it would be as an addition. Furthermore, in the comments above the one Peter quoted, there is a reply from the editor:"Kirk and Liz, This recipe has been corrected. Thanks for pointing out those typos! Sorry for the inconvenience! -editor." So I'm inclined to say that the correct percentage is 3.4%, as quoted in the recipe at the top of the page. Link to comment Share on other sites More sharing options...
Colby Charpentier Posted March 28, 2014 Report Share Posted March 28, 2014 .34% is in line with the amount of SiC that one would use to induce localized reduction, whereas 3.4% would be more in line with the "lava glazes," where you see at least 2% or so.. Also note that the crater glazes respond well to large mesh SiC, tighter mesh SiC is better (required) for induced reduction. Link to comment Share on other sites More sharing options...
Marcia Selsor Posted March 28, 2014 Report Share Posted March 28, 2014 Rick's Glazes are really nice. I remember when the article first came out. Both copies of the recipe say 3.4 % Silicon Carbide for the lava glaze. I have used silicon carbide for local reduction in minuscule amounts like .05% and for bubbly surfaces 1-5 %. Marcia Link to comment Share on other sites More sharing options...
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