Source/Alternate names: Cushing Handbook 1994 Smooth Satin/Mat Base
Firing Notes: cool maximum rate to 800C hold 1 hour
Significant Flaw: crazing
Notes: Alisa Clausen: glossy, transparent base, crazed badly on white midrange stoneware, oxides did not move under glaze.
With 10 zirconia, glossy, white glaze, crazed on white midrange stoneware, oxides did not move under base.
With 2 cobalt carbonate, glossy, dark blue glaze, no visible crazing.
With 1 cobalt carbonate plus 2 chrome oxide, semigloss, dark green glaze, no visible crazing.
With 1 copper carbonate, very glossy, transparent glaze, light green, crazed.
With 10 ochre, slightly less glossy, ochre brown glaze, slight crazing.
With 10 red iron oxide, slightly less glossy, dark brown glaze, no visible crazing.
Notes: Steve Slatin: some of the Cushing glazes are formulated for the far edge of what works. My favourite, Rusty Bronze done as green
runs at cone 6, and if you have a cool at all slow it gets very matte, but if you turn off your kiln at cone 5Â½ and do a fast cool, you get a
fabulous mix of glossy where thick and microcrystalline with a nice texture shift where thin. And one percent of bentonite in the glaze
bucket just changes it entirely.
|Nepheline Syenite (Theoretical)||45|