Alisa and Claus Clausen on thu 21 dec 00
Val's Turq. cone 6, oxidation.
Tested on mid range, iron flecked stoneware, fired to 1220c, oxidation.
27.60 Custer spar
16.90 Gerstely Borate
2.3 Copper carb.
Subbed local spar for Custer
All percentages rounded up to the nearest whole percent.
Resulted in a stable, bright and clear, gloss turquoise glaze.
Iron flecks came clearly though glaze. Slight, slight steaking and =
in bottom half of test bowl. Not a big color or covering difference =
where double dipped.
Same receipe with G.Borate subbed with Colemanite produced same results =
Same receipe with G.Borate subbed with local frit produced same results =
A nice, smooth gloss with a good greenish turquoise color.=20
Alisa in Denmark
SusanRaku@AOL.COM on sun 24 dec 00
Without the colorants, this makes a nice white gloss.