Lili Krakowski on wed 21 sep 11
=3D20
There was some talk of c1 firings...Lee, Snail...and c1 is a good place =3D
to be.
We all are being squeezed by fuel costs. Or, perhaps more accurately, as =
=3D
all sorts of costs and prices, prices and costs are zapping upward, we =3D
find fuel costs more onerous than once they were . (See Mel's comments =3D
on how cheerfully fuel was wasted in the 60s!.)
Anyway.
Someone asked about recipes. Looked about, found very few.
If I were changing to c.1 I simply would do straight line blends of c 04 =
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and let us say c 4 and go from there.
But, cracking a books:
From Richard Behrens "Ceramic Glazemaking" A CM Handbook
Glaze IV Opaque
Frit 3134 62
Pyrophilite 38
Add 2 Bentonite
Glaze III- Opaque
Frit 3134 77
Calcined Kaolin 23
Add 2 Bentonite
SINGLE FIRE GLAZES
Glaze III Clear
Hommel Frit 14 (Ferro 3134) 60
Ball Clay 20
Kaolin 20
GLAZE V Bright matt
Lithium Carb 1.2
Magnesium Carb 2.6
Whiting 11.3
Hommel Frit 14 30.8
Ball Clay 25
Flint 29.1
Glaze VI
Bright semi-translucent
Lithium Carb 2.2
Magnesium carb 2.4
Whiting 15
Hommel Frit 14 40.9
Ball Clay 34.8
Flint 4.7
Glaze VII
A satin matt
Lithium Carb 2.2
Magnesium Carb 2.4
Whiting 17.8
Pot spar 32.8
Ball Clay 30.6
Flint 14.2
Emmanuel Cooper has a number of c1 in The Potter's Book of Glaze =3D
Recipes.
Interestingly this book published in 1980 contains quite a few lead =3D
containing recipes-mostly lead bisilicate.
However:
A dark "oil" brown. Do not apply thick
Frit 3134 92
Kaolin (china clay) 8
Fe2O3 15%
There are others...but this list gives an overview (I think) of what the =
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ballpark looks like.
'
Lili Krakowski
Be of good courage
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