Tarek on sun 27 jul 03
Friends,
I am trying to find some oil spot recipes to test that will give good
results in reduction. Preferably something that will work well with other
glazes.
Thanks in advance..
Hank Murrow on sun 27 jul 03
On Sunday, July 27, 2003, at 12:31 PM, Tarek wrote:
> Friends,
>
> I am trying to find some oil spot recipes to test that will give good
> results in reduction. Preferably something that will work well with
> other
> glazes.
>
Dear Tarek;
You might wish to check out John Britt's article in Ceramics Monthly
for more on this family of glazes. He asserts, and I have confirmed,
that oil spot glazes are a result of Fe2O3 reducing around C/9 to FeO,
while the escaping O makes big bubbles in thich glaze, then healing to
form the spot. Thus, if your kiln has locations where oxidation is
assured, you have a chance, otherwise the iron reduces along with the
pots, and no bubbles/blisters at high temp.
You will find The article and many other treats here:
http://www.ceramicsmonthly.org/mustreads/oilspot.asp
due to the continuing generosity of CM.
Cheers, Hank in Eugene
Rod Wuetherick on wed 30 jul 03
> I am trying to find some oil spot recipes to test that will give good
> results in reduction. Preferably something that will work well with other
> glazes.
Tarek,
Just some friendly advice re Oil Spots. Draw rings lots of them - Or you may
try every recipe
on the planet and never find your lovely oilspot.
Rod
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