Maridel Crawford-Brown on wed 27 jan 99
Hello List members;
Does anyone have a Cone 6 glossy black that does not use nickel oxide and
is not too heavily loaded with managanses that would be suitable for a
studio/student setting?
TYIA
Maridel
Jennifer Rhinesmith on thu 28 jan 99
Here is a great black that I use a lot.
Metallic Black ^5-6
Gerstley borate 11
Whiting 5
Custer 79
EPK 6
Cobalt Ox 2
Copper Carb. 4
Manganese Diox 4
Try it, and just a word of caution, if put on to thick it runs. Hope
you like it. Jennifer in Alpine, Tx
>Date: Wed, 27 Jan 1999 13:46:42 EST
>Reply-To: Ceramic Arts Discussion List
>From: Maridel Crawford-Brown
>Subject: Cone 6 glossy black?
>To: CLAYART@LSV.UKY.EDU
>
>----------------------------Original
message----------------------------
>Hello List members;
>Does anyone have a Cone 6 glossy black that does not use nickel oxide
and
>is not too heavily loaded with managanses that would be suitable for a
>studio/student setting?
>TYIA
>Maridel
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Lois Ruben Aronow on thu 28 jan 99
------------------
On Wed, 27 Jan 1999 13:46:42 EST, Maridel Crawford-Brown wrote:
=3E----------------------------Original message----------------------------
=3EHello List members=3B
=3EDoes anyone have a Cone 6 glossy black that does not use nickel oxide and
=3Eis not too heavily loaded with managanses that would be suitable for a
=3Estudio/student setting?
This is one of our regular studio glazes.
Glossy Black
Kona F-4 79
Whiting 5
EPK 5
Gerstley borate 11
Additions:
Cobalt carbonate 2
Manganese dioxide 4
Copper carbonate 4
It's a wonderful shiny black, but waxy where really thick. Hope it
works for you.
......Lo
Norm Straker on fri 29 jan 99
Try this one, I like it:
Potash Feldspar - 42
Silica - 26
Whiting - 15
Kaolin - 15
Zinc Oxide - 12
Red Iron Oxide - 8 to 10
Cobalt Oxide - 1 to 2
Semi-gloss to gloss; deep blue-black to black, breaks black/green (good)
On Wed, 27 Jan 1999 13:46:42 EST Maridel Crawford-Brown
writes:
>----------------------------Original
>message----------------------------
>Hello List members;
>Does anyone have a Cone 6 glossy black that does not use nickel oxide
>and
>is not too heavily loaded with managanses that would be suitable for
>a
>studio/student setting?
>TYIA
>Maridel
>
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Ron Roy on fri 29 jan 99
I just calculated this glaze out of curiosity - it has a good supply of
alumina and silica so the temtation would be to assume it is durable. There
is a fly in the ointment however - well actually two - there is a lot of
sodium and a lot of copper - both of which promote leaching.
I sure would like to know if this glaze is releasing any copper, cobalt or
manganese into acidic food.
It is going to craze on a lot of bodies as well and that increases the area
that the acid gets to work on.
RR
>This is one of our regular studio glazes.
>
>Glossy Black
>
>Kona F-4 79
>Whiting 5
>EPK 5
>Gerstley borate 11
>
>Additions:
>
>Cobalt carbonate 2
>Manganese dioxide 4
>Copper carbonate 4
>
>
>It's a wonderful shiny black, but waxy where really thick. Hope it
>works for you.
>
>.....Lo
Ron Roy
93 Pegasus Trail
Scarborough, Ontario
Canada M1G 3N8
Tel: 416-439-2621
Fax: 416-438-7849
Web page: http://digitalfire.com/education/people/ronroy.htm
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