mel jacobson on mon 3 jan 11
i have put a good example of firing a glaze to
a bit over.
we were talking last month about firing to a
pre/prescribed temp...like cone 9-10.
i countered with...`perhaps you should fire
a cone higher and see what happens.`
i have been firing pete pinnell's cranberry
glaze to cone 11+ and it gets very interesting.
as many of you know i really have been working
on crystal growth in glazes. it takes a nice
down fire method...like a couple of hours at
1900 F. and, i always down fire reds to make sure
they don't go through the cooling too fast. (so you
do not get cranberry green.)
i have put a pix on the clayart page to show
red and blue crystal growth.
there is a very thin cobalt wash used with the red.
then down fired.
and it is important to hit a hot spot in the kiln
that will let this all happen.
if i block off the end of the flame way on my
kiln, and use only a hot glaze on the first two shelves....
i get this glaze.
nothing is for certain, and i get a very varied result, but
when it happens, is sure is exciting.
about 80 percent racers. and, none of the pots
are ever dogs, they just turn red, or blue.
(lean towards interiors, not exteriors to save my shelves.)
things to think about.
mel
from: minnetonka, mn
website: http://www.visi.com/~melpots/
clayart link: http://www.visi.com/~melpots/clayart.html
new book: http://www.21stcenturykilns.com
alternate: melpots7575@gmail.com
Johanna San Inocencio on mon 3 jan 11
nice.
On Jan 3, 2011, at 8:36 AM, mel jacobson wrote:
> i have put a good example of firing a glaze to
> a bit over.
>
> we were talking last month about firing to a
> pre/prescribed temp...like cone 9-10.
>
> i countered with...`perhaps you should fire
> a cone higher and see what happens.`
>
> i have been firing pete pinnell's cranberry
> glaze to cone 11+ and it gets very interesting.
>
> as many of you know i really have been working
> on crystal growth in glazes. it takes a nice
> down fire method...like a couple of hours at
> 1900 F. and, i always down fire reds to make sure
> they don't go through the cooling too fast. (so you
> do not get cranberry green.)
>
> i have put a pix on the clayart page to show
> red and blue crystal growth.
> there is a very thin cobalt wash used with the red.
> then down fired.
> and it is important to hit a hot spot in the kiln
> that will let this all happen.
>
> if i block off the end of the flame way on my
> kiln, and use only a hot glaze on the first two shelves....
> i get this glaze.
>
> nothing is for certain, and i get a very varied result, but
> when it happens, is sure is exciting.
> about 80 percent racers. and, none of the pots
> are ever dogs, they just turn red, or blue.
> (lean towards interiors, not exteriors to save my shelves.)
>
> things to think about.
> mel
>
>
>
> from: minnetonka, mn
> website: http://www.visi.com/~melpots/
> clayart link: http://www.visi.com/~melpots/clayart.html
> new book: http://www.21stcenturykilns.com
> alternate: melpots7575@gmail.com
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