Gene & Dolita Dohrman on tue 6 dec 05
Anyone who looked at this recipe and saved it, please delete it and replace
it with this. I did not copy it down correctly. So sorry!
Matt Yellow - ^6 Oxidation
15.79 Strontium Carb
10.53 Whiting
10.53 Zinc Oxide
52.62 Kona F-4 Feldspar
10.53 Tennessee Ball Clay
Add:
3.0 Rutile
1.5 Nickel Oxide
Whew! Marcia saved me on that one!
Dolita
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Ruth Ballou on wed 7 dec 05
Hi Dolita,
This glaze will likely not be useful in a reduction firing due to the
presence of zinc oxide, which easily reduces to the metal around
1750F. Since the metal alone boils at approx. 1700F, it will then
volatilize, perhaps with nasty effects on the glaze. The vapor is
poisonous, to boot.
Some say that it helps in Cu reds, but I've never see it have a
favorable effect on the glazes I use in reduction. I leave it out if
I see it in a reduction recipe since it's usually a small amount. But
this recipe calls for 10%. Likely would need to replace it with
another flux and then ya got a different glaze.
And this glaze is pretty low in the silica department, too. In
reduction, without the zinc I'd think that would be even more of a
problem.
Hamer and Hamer has more info on Zinc.
Ruth Ballou
Belgium
On Dec 6, 2005, at 10:04 PM, Gene & Dolita Dohrman wrote:
> Anyone who looked at this recipe and saved it, please delete it and
> replace
> it with this. I did not copy it down correctly. So sorry!
> Matt Yellow - ^6 Oxidation
> 15.79 Strontium Carb
> 10.53 Whiting
> 10.53 Zinc Oxide
> 52.62 Kona F-4 Feldspar
> 10.53 Tennessee Ball Clay
> Add:
> 3.0 Rutile
> 1.5 Nickel Oxide
> Whew! Marcia saved me on that one!
> Dolita
>
>
>
> --
> No virus found in this outgoing message.
> Checked by AVG Free Edition.
> Version: 7.1.371 / Virus Database: 267.13.12/192 - Release Date:
> 12/5/05
>
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