Dai Scott on thu 17 sep 98
Just catching up on a holiday-week's worth of Clayart mail, so this may have
already been addressed in later posts, but----I wonder if Greg's solution to
disposing of unwanted glaze (pouring into bowls and firing) doesn't present
some hazards. I visualize this bowl filled with glaze bubbling and boiling
at peak temperature and spattering all over the inside of the kiln; or the
stress of that huge amount of glaze (as opposed to the usual thin film)
causing tremendous stress on the clay bowl and having it split or crack,
also causing a mess with glaze. Am I wrong? Has anyone actually done this?
I have so far been really lucky with my "test" glaze combinations. I don't
use non-food-safe recipes as a rule, so when I have a lot of pint-sized ugly
test batches, I mix them all together, resulting in a couple of gallons of
mystery glaze, which have turned out to be some of the neatest glazes I've
used! Of course, they're unrepeatable, so I usually use them for "show" or
more arty pieces, rather than my usual production stuff that customers
always want to "match up" somewhere down the road. Good to be back to Clayart
Dai Scott - Pottery by Dai, in Kelowna, B.C., gearing up for fall classes,
winter shows, all the busy, busy stuff!
Jeff Lawrence on sat 19 sep 98
Dai Scott asked about the bowls full of glaze scraps:
>--I wonder if Greg's solution to
>disposing of unwanted glaze (pouring into bowls and firing) doesn't present
>some hazards. I visualize this bowl filled with glaze bubbling and boiling
>at peak temperature and spattering all over the inside of the kiln; or the
>stress of that huge amount of glaze (as opposed to the usual thin film)
>causing tremendous stress on the clay bowl and having it split or crack,
>also causing a mess with glaze. Am I wrong? Has anyone actually done this?
Hi Dai,
I get a lot of frozen bubbles, but I have not seen any spatters, even right
next to the bowl--probably too stiff. I worried about the bowl cracking,
too, so I nest the glaze bowl in a second bowl (and in fact, we are right
-- interior one often cracks. So maybe I should nest the two in yet a
third. and then, to really be safe, a fourth...)
The serious downside I've found to this technique is a health- and
dental-related. To wit, the finished product often has incredibly rich
depth and texture, causing me to gnash my teeth and pound my head against
the wall in frustration that I can't get the same surface on a lamp base
.... so don't say you weren't warned.
Grimly yours,
Jeff
Jeff Lawrence
jml@sundagger.com
Sun Dagger Design
Rt. 1 Box 394L
Espanola, NM 87532
vox/fax 505-753-5913
Mike Santone on sat 19 sep 98
I let the glaze slop evaporate to dry chunks in the bowl, lots of cracking and
settling. And I do not fire too high ^04 - 1. It fuses, but often does not
totally melt to runniness or glossiness. The idea is to make the glaze slop muc
less soluble. I have had no trouble in the kiln.
Dai Scott wrote:
> ----------------------------Original message----------------------------
> " I visualize this bowl filled with glaze bubbling and boiling
> at peak temperature and spattering all over the inside of the kiln; or the
> stress of that huge amount of glaze (as opposed to the usual thin film)
> causing tremendous stress on the clay bowl and having it split or crack,
> also causing a mess with glaze. Am I wrong? Has anyone actually done this?
> Dai Scott - Pottery by Dai, in Kelowna, B.C., gearing up for fall classes,
> winter shows, all the busy, busy stuff!
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