These are glazes I used in the 1960's, and for the most part were found, adapted or invented by Barbara Irvine for use in electric kilns fired to cone 8. The Talc Base blue and green were two of my favourites, but there are several other good ones here. Please feel welcome to use the recipes, but be sure to test them out first to see if they are suitable for your work.
Talc Base
Feldspar 45
Gerst. Borate 13
Dolomite 7
Talc 15
EPK 5
Flint 20
this base glaze can also be made with Neph. Sy. as the feldspar
Colour additions: (for blues and greens always use a sodium type feldspar)
green: Red iron ox. 1.5, copper ox. 1.5
blue: cobalt ox. 2.5, copper ox. 2.0
yellow: Red iron ox. 2.0, tin ox. 1.0
brown: Red iron ox. 9.0, increase EPK from 5 to 20
grey-brown: cobalt ox. 2.5, Red iron ox. 2.0, nickle ox. 1.5
Stoney Matte
Feldspar 100.8
Dolomite 40.2
Whiting 21.9
Zinc Ox. 17.7
EPK 67.5
Flint 52.2
Colour additions:
yellow: Red iron ox. 6
green: cobalt ox. .8, Red iron ox. 6
blue: cobalt ox. .8, copper ox. 3
mustard: Red iron ox. 15
green-grey: copper ox. 6
yellow-green: copper ox. 3, Red iron ox. 3
beige: cobalt ox. .8, Red iron ox. 5, nickle ox. 5
Satin White
Neph. Sy. 53
Ball clay 20
Flint 10
Dolomite 15
Zinc Ox. 2
S4
Neph. Sy. 74.5
Zinc Ox. 2.2
Dolomite 4.9
Whiting 2.7
EPK 6.9
Flint 8.7
Colour additions:
green-brown: copper ox. 2, Red iron ox.2
mushroom: manganese ox.1
Copper Matte Turquoise
Barium carbonate 25
Neph. Sy. 56
Ball clay 6
Flint 7
Lithium carbonate 3
Copper carbonate 3
LA Matte
Feldspar 51.6
Flint 5.6
Whiting 18.8
Zinc Ox. 8.6
EPK 15.4
Colour additions:
turquoise: copper ox. 4.5, cobalt ox. .8, rutile 9
light green: copper ox. 3, Red iron ox. 3, rutile 6
dark green: copper ox. 6, Red iron ox. 6, rutile 6
mushroom: manganese ox. 3
Semi Matte
EPK 26
Whiting 25
Feldspar 40
Flint 22
Rhodes 32 (by itself, a frosty white matte)
Feldspar 48.9
EPK 25.1
Dolomite 22.4
Whiting 3.5
Flint 3.3
Rutile 5.0
Colour additions:
brown: Red iron ox. 6, rutile 4
yellow: Red iron ox. 3, rutile 2
turquoise: cobalt ox. .5, chrome ox. .5, rutile 2
grey: Red iron chromate 2
Sandstone
Neph. Sy. 47
Barium carbonate 12
Talc 13
Gerst. bor. 6
EPK 10
Flint 6
Granular ilmenite .5
Red iron ox. 1
Rutile .5
Mustard
Neph. Sy. 36
Barium carb. 20
Dolomite 14
Ball clay 9
Flint 10
Tin ox. 7
Red iron ox. 4
S 16
Whiting 10
Gerst. bor. 12
Barium carb. 8
Magnesium carb. 3
Sodium feldspar 30
Flint 32
EPK 5
Colour additions:
shiney yellow: Red iron ox.3, rutile 4.5, tin ox. 3
olive: copper ox. 2, Red iron ox. 2, rutile 3, tin ox. 3
grey-blue: copper ox. 1, Red iron ox.1, cobalt ox. .8, rutile 3, tin ox. 3
Chun Type Glaze
Sodium Feldspar 42.1
EPK 5.0
Flint 27.2
Whiting 2.6
Gerst. bor. 8.8
Dolomite 8.8
Zinc ox. 1.7
Barium carb. 4.4
Colour additions:
violet: rutile 1, manganese 5
blue-green: rutile 1, copper ox. 1.5
opal blue: rutile 3, cobalt ox .3
green: copper carb. 3, rutile 1
white: tin ox.7
opaque cream: rutile 6.5
Orange
Cornwall stone 50
Whiting 20
Zinc ox. 10
EPK 20
Red iron ox. 6
Tin ox. 4
Stoney Green
Sodium feldspar 41.8
Whiting 17.5
EPK 25.7
Cobalt ox. .5
Red iron ox. 2.0
Nickle ox. 1.5
Pale Yellow
Feldapar 60
Dolomite 27.5
Whiting 10
EPK 25
Flint 59
Red iron ox. 4.5
Matte
Neph. Sy. 25
Feldspar 24
Dolomite 10
Whiting 14
Zinc ox. 9
EPK 24
Flint 15
Copper Blue Matte
Barium carb. 20
Flint 10
EPK 10
Sodium feldspar 55
Talc 5
Copper ox 4
Dolomite 5
Clay Body — cone 8 - 9 oxidation
Georgia kaolin 6.25
Jordan clay 26
EPK 10.75
Bell ball 37.5
Cedar hts. 15
Flint 6.25
Fire Clay 15
Fine grog 10
Buckingham feldspar 6
