Lee Taylor on mon 20 sep 10
I am wondering about using alumina oxide as an ingredient in a kiln wash.=
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All=3D20
of the recipes I have seen call for alumina hyrdate, but it is much more=
=3D
=3D20
expensive. It seems that as long as it is alumina, it shouldn't matter.
Anyone have experience with this?
Lee Love on tue 21 sep 10
On Mon, Sep 20, 2010 at 4:07 PM, Lee Taylor wrot=
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e:
> I am wondering about using alumina oxide as an ingredient in a kiln wash.=
=3D
=3DA0All
> of =3DA0the recipes I have seen call for alumina hyrdate, but it is much =
mo=3D
re
> expensive. =3DA0It seems that as long as it is alumina, it shouldn't matt=
er=3D
.
>
> Anyone have experience with this?
I use alumina oxide in shino and it is very expensive. It is
calcined to 3000*F. I see no reason to spend so much for kiln wash.
Alumina oxide 1lb =3D3D $10.90
Alumina hydrate =3D3D $3.72
--
=3DA0Lee, a Mashiko potter in Minneapolis
http://mingeisota.blogspot.com/
=3D93Observe the wonders as they occur around you. Don't claim them. Feel
the artistry moving through and be silent.=3D94 --Rumi
Craig Martell on tue 21 sep 10
Lee was asking:
>I am wondering about using alumina oxide as an ingredient in a kiln
>wash. All
>of the recipes I have seen call for alumina hyrdate, but it is much more
>expensive. It seems that as long as it is alumina, it shouldn't matter.
Alumina hydrate has a loss on ignition of about 34.6% and alumina
oxide has zero LOI. So in the fired result you get 34.6% more for
yer $$ with alumina oxide.
regards, Craig Martell Hopewell, OR
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