Craig Fulladosa on wed 25 nov 98
Does anyone have a recipe for a low-fire oxidation fired metallic bronze
or copper
glaze with the appearance to have oxidized a brownish green that will
show in crevices and crannies in the ceramic piece? Please hurry.
Thanks.
the Clayman
http://home.earthlink.net/~craigfull/
Craig Fulladosa on sun 7 feb 99
Does anyone have a recipe for a low-fire oxidation fired metallic bronze
or copper
glaze with the appearance to have oxidized a brownish green that will
show in crevices and crannies in the ceramic piece? Please hurry.
Thanks.
the Clayman
http://home.earthlink.net/~craigfull/
Jeff Lawrence on mon 8 feb 99
the Clayman was asking:
>----------------------------Original message----------------------------
>Does anyone have a recipe for a low-fire oxidation fired metallic bronze
>or copper
>glaze with the appearance to have oxidized a brownish green that will
>show in crevices and crannies in the ceramic piece? Please hurry.
>Thanks.
>the Clayman
>http://home.earthlink.net/~craigfull/
>
I got something along these effectual lines when I added a lot (3-5%?) of
copper oxide to a minor variation of Rhodes Lithium Blue and fired it on a
50-50 ball clay-talc slipcast body to ^04 in electric kilns... Thick was
metallic black/gray, thin was turquoise blue and green, thinnest was
brownish. If you want a lot of brown, though, you'll have to tinker.
My variation: the original shivered badly on my body, so I substituted in
sodium for lithium with little difference in surface. Sorry I'm not more
specific, but this was five years ago and I didn't pursue it. The recipe is
in Rhodes' Clay and Glazes book, which I don't have available right now.
It was a wild finish, though the varigation was too great for my needs. If
you need consistency, you might consider doing what I do now -- making a
faux finish with green stained opaque white mat splatter sprayed over a mat
black base. It is nowhere near as eye-popping as the Rhodes, but repeatable.
Good luck,
Jeff
Jeff Lawrence
Sun Dagger Design
Route 3 Box 220
Espanola, NM 87532
phone: 505-753-5913
fax: 505-753-8074
website: http://www.sundagger.com
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