Nils Lou on mon 1 feb 99
Just to pique you Clayarters collective interest (curiosity) in copper
reds, I mixed up the first three copper red recipes Pete Pinnell published
recently in Clay Times. Three distinctly different reds developed as he
suggested from warm to cool. They were fired in 3-1/2 hours to small cone
10 (kiln sitter) in a one cubic foot Aim top load electric. Protocol was:
turn switch to high , at 1650 degrees F introduced small gas flame in
bottom of kiln with visible flame emerging from 1-1/2 hole in center of
lid.
Very nice, mature glazes with saturated color varying from
strawberry (warm) red to cool, purple. Test cylinders were white
stoneware, 4 in height. Glazes were dipped for 5 seconds. Bottom edge of
glaze was one inch above cylinder bottom with no running.
The Aim kiln was prepared by spraying interior with ITC100 and
subsequent overcoat of ITC296A. Elements are original, not coated with
ITC213. After 40-50 reduction firings there is no observable slowing down
in the time to temperature.
Cheers to all, Nils Lou
Bill Aycock on tue 2 feb 99
Nils- how long did you apply the flame (time, that is, or to what temp)?
Bill
At 02:00 PM 02/01/1999 EST, you wrote:
>----------------------------Original message----------------------------
>Just to pique you Clayarters collective interest (curiosity) in copper
>reds, I mixed up the first three copper red recipes Pete Pinnell published
>recently in Clay Times. Three distinctly different reds developed as he
>suggested from warm to cool. They were fired in 3-1/2 hours to small cone
>10 (kiln sitter) in a one cubic foot Aim top load electric. Protocol was:
>turn switch to high , at 1650 degrees F introduced small gas flame in
>bottom of kiln with visible flame emerging from 1-1/2 hole in center of
>lid.
> Very nice, mature glazes with saturated color varying from
>strawberry (warm) red to cool, purple. Test cylinders were white
>stoneware, 4 in height. Glazes were dipped for 5 seconds. Bottom edge of
>glaze was one inch above cylinder bottom with no running.
> The Aim kiln was prepared by spraying interior with ITC100 and
>subsequent overcoat of ITC296A. Elements are original, not coated with
>ITC213. After 40-50 reduction firings there is no observable slowing down
>in the time to temperature.
>
>Cheers to all, Nils Lou
>
>
-
Bill Aycock --- Persimmon Hill
Woodville, Alabama, US 35776
(in the N.E. corner of the State)
W4BSG -- Grid EM64vr
baycock@HiWAAY.net
Nils Lou on wed 3 feb 99
It took 1-1/2 hours to reach 1650F (switch is on highfrom the start) two
more hours to cone 10 (small). Flame shows from 1650 to maturity. This was
during a workshop at OCAC (Portland) and I had to eyeball it since I had
forgotten to bring my OXYprobe. NL
On Tue, 2 Feb 1999, Bill Aycock wrote:
> ----------------------------Original message----------------------------
> Nils- how long did you apply the flame (time, that is, or to what temp)?
>
> Bill
>
> At 02:00 PM 02/01/1999 EST, you wrote:
> >----------------------------Original message----------------------------
> >Just to pique you Clayarters collective interest (curiosity) in copper
> >reds, I mixed up the first three copper red recipes Pete Pinnell published
> >recently in Clay Times. Three distinctly different reds developed as he
> >suggested from warm to cool. They were fired in 3-1/2 hours to small cone
> >10 (kiln sitter) in a one cubic foot Aim top load electric. Protocol was:
> >turn switch to high , at 1650 degrees F introduced small gas flame in
> >bottom of kiln with visible flame emerging from 1-1/2 hole in center of
> >lid.
> > Very nice, mature glazes with saturated color varying from
> >strawberry (warm) red to cool, purple. Test cylinders were white
> >stoneware, 4 in height. Glazes were dipped for 5 seconds. Bottom edge of
> >glaze was one inch above cylinder bottom with no running.
> > The Aim kiln was prepared by spraying interior with ITC100 and
> >subsequent overcoat of ITC296A. Elements are original, not coated with
> >ITC213. After 40-50 reduction firings there is no observable slowing down
> >in the time to temperature.
> >
> >Cheers to all, Nils Lou
> >
> >
> -
> Bill Aycock --- Persimmon Hill
> Woodville, Alabama, US 35776
> (in the N.E. corner of the State)
> W4BSG -- Grid EM64vr
> baycock@HiWAAY.net
>
Marion Barnes-Schwartz. on thu 4 feb 99
Nils,
How is the flame applied? Are you using a propane torch?
Thanks,
Marion
Denver, NY
Nils Lou on fri 5 feb 99
The flame is introduced in the center bottom of the kiln through a 1-1/2"
hole. The burner is a Bunsen type rat-tail with a propane orifice. Hose to
LPG bottle. Burner is about $21 from any propane dealer. The little AIM
kiln comes on a metal stand about 8" high which provides access to the
bottom. Cheers NL
On Thu, 4 Feb 1999, Marion Barnes-Schwartz. wrote:
> ----------------------------Original message----------------------------
> Nils,
> How is the flame applied? Are you using a propane torch?
> Thanks,
> Marion
> Denver, NY
>
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