[Clayart] Black Glazes

[wschran at twc.com]

Jeff,
Reading Mason Color's reference guide I note that max temperature listed is 2300F for all of their stains.
Though I did a bit of a search I couldn't find references to using stains and how they might be affected in a reduction atmosphere.
When teaching we fired reduction but to cone 6 that seemed to allow for more color possibilities using stains.
Perhaps the combination of high temperature and reduction, maybe throwing in the glaze chemistry, may be factors in unsatisfactory results for what you seek.
Did you use a black stain containing only cobalt & iron?

Bill

William Schran
wschran at twc.com
703-505-1617

---- Jeff Lawrence <jefflawr at gmail.com> wrote: 
> Thanks for the suggestions about iron and cobalt for black. Fired some
tests yesterday that came out quite delicious.
Still puzzles me why the stains don't go as black but there's no arguing
with results.

Jeff
Jeff Lawrence
jefflawr at gmail.com
jeffreylawrence.net
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