clay lover Posted May 31, 2015 Report Share Posted May 31, 2015 I am testing the following glaze and would like it to be a bit more mint green, bluer side of light green. It is a great surface, but just a touch more yellow green than I am looking for. What changes do you recommend to get there? Add a 1/2 percent cobalt? The base is the Calcium semi matt from MC6G. 3195 22.2 wollastonite 21 neph sy 4.4 EPK 33.3 silica 18.8 I added copper carb 1.50 rutile 7.00 With the same base and cobalt 1.0, titanium diox 3.0, I got a strong sky blue, not what I want either. Thanks for any direction that will help me narrow down the testing, I am new at changing a glazes color. Link to comment Share on other sites More sharing options...
neilestrick Posted May 31, 2015 Report Share Posted May 31, 2015 Even 1/2% cobalt will give you a strong blue. Have you tried copper without the rutile? The simplest option would be to get a mason stain the color you want, and just test percentages to see how much you need. Link to comment Share on other sites More sharing options...
clay lover Posted May 31, 2015 Author Report Share Posted May 31, 2015 thanks, I think I will try dropping the rutile first, 5% 3%, then none. and see what happens there, then go on to cobalt in very small amounts in those same tests. Link to comment Share on other sites More sharing options...
rayaldridge Posted May 31, 2015 Report Share Posted May 31, 2015 The rutile contains iron, which in oxidation may be pushing the color toward yellow. Link to comment Share on other sites More sharing options...
Min Posted May 31, 2015 Report Share Posted May 31, 2015 I would sub about 4 or 5 titanium dioxide for the rutile plus the copper. If that doesn't work then I would tweak it with some stain. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.