NakedClay@aol.com on tue 11 may 99
Hi Pamela, and other admirers of black slip:
Have you tried slaking out (ie, creating slip from a clay body) a dark clay
body, such as Cassius Basaltic, or Black Mountain? Both of these manufactured
clays are available in California. I've used Black Mountain Slip, which will
fit on most cone 10 whiteware clays and porcelan. If applied thickly, it will
produce a gorgeous black sheen when reduction-fired at cone 10--no glaze
required!
Cassius Basaltic is even darker, but has one caveat: it vitrifies at cone 6.
So, use Black Mountain for high-fire, and C. Basaltic for mid-fire.
Good luck to you!
Milton NakedClay@AOL.COM
Getting warmer out here in the High Desert, but not yet hot enough to shed
all clothing!
To see a great picture of me and "Hound Mask," visit Fabienne's ClayArt
webpage.
>http://clay.justnet.com/gallery/Default.htm<
Patty Alander on wed 12 may 99
Pamala,
I've used 8% ochre and 3% cobalt for black. In my notes I have reference to a
black using 3% iron, 2% cobalt, and 2% manganese - which I haven't tried.
Would you share your recipe for the great engobe that works like a glaze and
fits everything?
Thanks,
Patty
Pamala Browne wrote:
> ----------------------------Original message----------------------------
> I have a great engobe that works like a glaze ( too much frit) but it fits
> everything and comes out shiny-cool.I have been watching the recipes for
> slips with an interest for the colorants.Haven't seen a black yet--anybody
> out there have a reliable combination of oxides to make a black,black?I had
> one that combined three-one of which was cobalt-but I can't find my first
> little recipe book and the tests I've done are giving dark browns.Any help
> would be greatly appreciated!!
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