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cone 1

updated thu 22 sep 11

 

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 =
=3D
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 =
=3D
ballpark looks like.

































































































'




Lili Krakowski
Be of good courage