[Clayart] Ohata Kaki from Bill Schran

sumi sumi at herwheel.com
Thu Aug 25 16:04:26 UTC 2022


Roxanne

Reduction.

Sumi
> Is this a cone six reduction or oxidation glaze? Thanks, Rox
>
>
>> rom: sumi <sumi at herwheel.com>
>> To: clayart at lists.clayartworld.com
>> Subject: Re: [Clayart] Bone ash?
>> Message-ID: <22134796-db41-3bde-e84b-3d19c4293f11 at herwheel.com>
>> Content-Type: text/plain; charset=UTF-8; format=flowed
>>
>> I have added bone ash to a common and much-published Ketchup recipe,
>> cone 6 oxidation, and it did make it more red. I did a line blend with
>> bone ash. Actually I think it was a triaxial blend with bone ash and
>> lithium, I think. I only mixed it up once because the magic mixture that
>> turned a good red was also more runny - also because it turned out that
>> the Ketchup on a slow cool schedule was a perfectly good red.
>>
>> For reduction I found several recipes that called for bone ash and
>> tested them with my dad's ashes and one of them made a lovely red. I
>> think it is this one:
>>
>> Ohata Kaki from Bill Schran
>>
>> Custer Potash Feldspar ? 52
>> Bone Ash ? 14
>> Silica ? 12
>> Dolomite ? 8
>> EPK ? 6.1
>> Lithium Carbonate ? 4
>> Gertsley Borate ? 4
>> Red Iron Oxide ? 10
>>
>> Thin to medium application
>>
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>>
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-- 
Sumi von Dassow
President, Beulah Valley Arts Council



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