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leadless glaze for wood fired earthenware

updated wed 27 oct 99

 

Steve Earp and Cindy Snow on mon 25 oct 99

I am looking for any information on substitutes for lead in glazes for
wood fired earthenware. The immediate objective is for use on early
American Redware style pots.

any takers?

steve

Khaimraj Seepersad on tue 26 oct 99

Would this help -

3124 plus clay - Ask Tom Buck or Tony Hansen for %.

or
For - 983 deg.c [ 08 small cone ]

2.6 Na20
4.1 K20
2.6 Mg0
3.6 Ca0
6.7 Sr0 [ was Ba0 ]
14.9 B203
12.4 Al203
53.1 Si02 use Zircopax to opacify .

Khaimraj Seepersad



-----Original Message-----
From: Steve Earp and Cindy Snow
To: CLAYART@LSV.UKY.EDU
Date: 25 October 1999 10:25
Subject: leadless glaze for wood fired earthenware


>----------------------------Original message----------------------------
>I am looking for any information on substitutes for lead in glazes for
>wood fired earthenware. The immediate objective is for use on early
>American Redware style pots.
>
>any takers?
>
>steve
>

Martin Howard on tue 26 oct 99

A Standard Borax Frit does very well for cones 02-1. Is that the sort of
thing you are thinking about, Steve and Cindy? Or you can use Nephyline
Syenite. All depends on what other materials you wish to use so that they
right balance is achieved for the kind of glaze you want.

Of course, you could fire once only and use a burnished terra sigillata with
some copper to reflect the natural red of the ware.

You are both on a path of discovery. Enjoy it.

Martin Howard
Webbs Cottage Pottery
Woolpits Road
Great Saling
BRAINTREE
Essex CM7 5DZ
araneajo@gn.apc.org
martin@webbscottage.co.uk