Lee on mon 7 feb 11
On Mon, Feb 7, 2011 at 3:04 PM, Holli Brandt wrote:
> =3DA0What else could I try?
Try sharing some photos of the work. If you don't have a place to put
them, send them to me and I'll put them on the web.
Good luck!
--=3D20
--
=3DA0Lee Love in Minneapolis
http://mingeisota.blogspot.com/
=3DA0"Ta tIr na n-=3DF3g ar chul an tI=3D97tIr dlainn trina ch=3DE9ile"=3D9=
7that is, =3D
"The
land of eternal youth is behind the house, a beautiful land fluent
within itself." -- John O'Donohue
Holli Brandt on mon 7 feb 11
Hello -
I am been trying to dial in my electric kiln for a while now and feel I a=
=3D
m=3D20
ALMOST there....=3D20
I am firing stoneware to a preprogrammed ramp of a Slow Cone 5 firing on =
=3D
my=3D20
electric kiln. The kiln is firing to ~2160 in about 13 hours. I put Co=
=3D
ne 6 pyro=3D20
cones on all shelves and they all just slight bend. All seems good, exce=
=3D
pt my=3D20
clay still comes out too dark and some of my glazes appear to have 'burnt=
=3D
'=3D20
through.=3D20
At the end of the firing the kiln just appears to shut off and I watch th=
=3D
e=3D20
temperature what seems to be naturally drop back down. I have an=3D20
envirovent on the kiln so I do not open any of the plugs or prop open the=
=3D
lid=3D20
until around 200 degrees. Is my cooling process somehow affecting my=3D20
pottery peices? What else could I try?
Thanks - Holli
Snail Scott on mon 7 feb 11
On Feb 7, 2011, at 3:04 PM, Holli Brandt wrote:
> ...I put Cone 6 pyro=3D20
> cones on all shelves and they all just slight bend. All seems good, =3D
except my=3D20
> clay still comes out too dark and some of my glazes appear to have =3D
'burnt'=3D20
> through...
Electric firing cannot affect the color of clay one =3D20
way or another. It can only vitrify it. Nothing you=3D20
or the kiln can do in the firing will change he color.
That's just the color your clay gets at that temperature.
If you want a lighter clay color after firing, you will=3D20
have to choose a different clay.
As for glaze 'burning out', that doesn't happen. Glaze=3D20
can get more melted or less melted depending on=3D20
temperature, but it can't burn away. My guess is that=3D20
it was simply applied too thinly. This is the single=3D20
most common issue with beginning glaze use. Try=3D20
putting it on much mre thickly next time. It's a good idea=3D20
to do small tests, with thicker and thinner applications=3D20
of the same glaze side-by-side, to get the best idea of=3D20
the optimum application before you start glazing any=3D20
actual work.
-Snail
>=3D20
> At the end of the firing the kiln just appears to shut off and I watch =
=3D
the=3D20
> temperature what seems to be naturally drop back down. I have an=3D20
> envirovent on the kiln so I do not open any of the plugs or prop open =3D
the lid=3D20
> until around 200 degrees. Is my cooling process somehow affecting my=3D2=
0=3D
> pottery peices? What else could I try?
>=3D20
> Thanks - Holli
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