Sandy Henderson on tue 7 dec 10
One of my favorite iron red glazes (cone 6) is Greg Lamont=3DE2=3D80=3D99s =
Carame=3D
l Apple (recipe below) which I refire to cone 04 with a slow cool. It can m=
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ake luscious reds/oranges/ dark browns with a smooth semi-gloss surface. B=
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ut something happened with the last batch I mixed: it came out with an oran=
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ge-peel texture. To see if I could correct this, I re-sieved the batch (60=
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mesh), and also put a portion of the glaze in the blender for about 45 sec=
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onds. Both versions came through the cone 6 firing nicely. But when I refi=
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red to cone 04, the blender glaze came out dark brown, not red, and with a =
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scattering of little bumps like grains of sand. The sieved glaze did fine.
Obviously I will not put this glaze into the blender again (!),although I h=
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ave successfully blended other glazes this way. But I would like to know: W=
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HAT THE HECK HAPPENED? Anyone?
Side note: I have recently been using C Harris Temmoku and have found it ve=
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ry reliable, as others have mentioned recently, with no refiring needed. No=
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t as interesting a surface as the Caramel Apple. It has been more orange th=
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an red for me though -- should do some tweaking.
LAMONT CARAMEL APPLE
(Doesn=3DE2=3D80=3D99t add up to 100 because I upped the bone ash a bit)
20 Frit 3134
10 Dolomite=3D20
20 Spodumene
20 Kentucky OM #4
7.5 Bone ash =3D20
5 Talc=3D20
20 Flint
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15 Red iron oxide
2 Bentonite
Thanks for any explanations!
Sandy Henderson
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