Don Goodrich on sat 24 mar 12
Gee Cheryl, that's a lot of cobalt, almost 9 percent! You could probably=3D=
20=3D
reduce it to 5% (or 13 in the recipe you've given) and not notice a diffe=
=3D
rence.=3D20
Be that as it may, the following may turn out more to your liking:
Fairview Blue modified (cone 5):
Whiting 25
Custer spar 105
Ball clay=3D0920
Flint 25
Magnesium carb 4
Gerstley borate 30
Cobalt carbonate 24
A percent (adding up to 100) version would be:
Whiting 11
Custer spar 45
Ball clay 9
Flint 11
Magnesium carb 2
Gerstley borate 13
Cobalt carbonate 9
Happy testing,
Don Goodrich
http://dongoodrichpottery.com/
On Sat, 24 Mar 2012 10:51:33 -0600, Cheryl Brown=3D20
wrote, in part:
>>>
>The recipe is as follows:
>Whiting 51
>Custer spar 105
>Ball clay 36
>Flint 15
>Magnesium Carb 6
>Gerstley Borate 30
>Cobalt 24
Cheryl Brown on sat 24 mar 12
> This message is in MIME format. Since your mail reader does not understan=
d
this format, some or all of this message may not be legible.
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>>
>>Hi Clayrters,
>>
>>I have a request from a small town potter's guild in Fairview AB.
>>
>>They tested this glaze and fired it to cone 5. They were wondering if
>>anyone could do the magic and make some suggested modifications to get a
>>better melt. They like the color but not the dry texture. Any help
>>would be greatly appreciated.
The recipe is as follows:
Whiting 51
Custer spar 105
Ball clay 36
Flint 15
Magnesium Carb 6
Gerstley Borate 30
Cobalt 24
>>
>>Sincerely
>>Cheryl Brown
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