|Now you'll recognize me at NCECA|
This one is a trick I love to show students. It's Malcolm Davis Shino, onto which I brushed liquid wax resist...and then didn't do anything else. Just glaze, then wax. No second layer of glaze, no water sprayed on, no sponging.
|The mug, before firing|
It's the only glaze I know that will do this. The wax prevents the soda ash from rising to the surface of the glaze, and then provides carbon for the glaze to trap as it burns off, creating the contrast between the waxed and unwaxed areas.
It's a highly changeable glaze, its results varying wildly from firing to firing, prompting my students to proclaim that the "M.D." on the bucket stands for Mad Dog. It was a good dog this time, though.
Perhaps because of the high percentage of Neph Sy in the recipe, MD Shino has performed well for me. with NO alteration, at ^6 also. Here's the recipe:
|Malcolm Davis Shino|
|Soda Ash 16.3|
|F-4 Soda Feldspar 9.3|
|Neph Sy 38.6|
|Red Art 5.7|