Here are two (okay three) formulas for very nice base glazes (Cone 9/10) that come from Cleveland State University. I am not sure if they originated there, but well before I got there, they were being used as a jumping off point for a variety of glazes by a number of students. I am also including a formula that acts as an approximate substitute for Cornwall Stone. I used the 2001 base more frequently than the 1001 base and was able to come up with a large number of Cone 9 glazes. They are dependable and worth a shot. With the right base glaze, the possibilities are nearly endless.
Cornwall Stone 75
Gerstley Borate 10
Nephaline Syenite 33
CORNWALL SUBSTITUTE (Approximate)
Custer Spar 67
Illustrated is a large severely paddled, covered mizusashi form glazed in one or another of the base glaze concoctions that I developed at CSU.
“Results! Why, man, I have gotten lots of results. I know several thousand things that won’t work. “ Thomas Alva Edison (1847-1931)