search  current discussion  categories  kilns & firing - misc 

firing wet ware in electric kiln

updated sun 31 aug 97

 

Nikki Simmons on fri 8 aug 97

I was curious if anyone had tried bisque firing wet ware in their
electric or gas kiln. I am testing a used kiln I just picked up and
have lots of extra space inside. If I were to put wet ware in, just how
long do you think I should leave it on low? AND has anyone tried drying
stuff in their kitchen oven on 100 degrees?

Please respond directly, I get CLAYART in digest form.

Thanks,
Nikki Simmons
Sue Gerard's Latest Apprentice
Russellville, Missouri

Karen R. Betts on sat 9 aug 97

On Fri, 8 Aug 1997, Nikki Simmons wrote:

> ----------------------------Original message----------------------------
> I was curious if anyone had tried bisque firing wet ware in their
> electric or gas kiln. I am testing a used kiln I just picked up and
> have lots of extra space inside. If I were to put wet ware in, just how
> long do you think I should leave it on low? AND has anyone tried drying
> stuff in their kitchen oven on 100 degrees?
>
> Please respond directly, I get CLAYART in digest form.
>
> Thanks,
> Nikki Simmons
> Sue Gerard's Latest Apprentice
> Russellville, Missouri
_____________________________________________________________________________
Nikki,

Yes, I have dried stuff in my oven...It won't go as low as 100 degrees,
though...I just get as low as it will go and still have the light come on.
Then, I turn it off every hour for about 30 mins. or so...I also leave the
oven door open a little bit. This method works okay for small items (bowls,
and such) and also works for flat things like tiles. It is not good for
sculptural pieces or large things, however, as the drying tends to be
uneven in such things anyway. With the bowls that I "oven-dried", I turned
them over after an hour or so, also, so that the bottoms could dry out.

Good Luck with your clay.
Sincerely,
Karen Betts
University of Florida
Ceramics Program
>

ambersmith on sun 10 aug 97

I have put leather hard into my kiln and left it right at low for a couple
of hours..that was fine..but I wouldn't use my oven, maybe yours is cleaner
than mine, but for me any little fat/oil splat would ruin the glaze finish
I applied next ! Have learnt the hard way to keep lunch, my sticky fingers
and my work away from each other!!! Good luck, Amber.

Nikki Simmons wrote in article
<33E9F36C.93C@computerland.net>...
> ----------------------------Original message----------------------------
> I was curious if anyone had tried bisque firing wet ware in their

Sandy Hensen on mon 11 aug 97

I dry my sculptures in my oven all the time at 150 but I had about 10 of
them blow up in my electric kiln which was set on 10% for several hours. My
sculptures are about 12 inches high and 2 to 3 inches wide solid clay. My
electric kiln is an Aim kiln that you can hold at any % you want. Hope this
helps Sandy in rainey Boulder, Co

Dan C Tarro on tue 12 aug 97

I will agree with Mell, our Minnesota expert, good clay is everything. If
you have enough grog in your clay you should have no problem. The grog
gives the steam a channel to vent so it doesn't blow up like an un
stabbed potato in your microwave. The same reason that you grog sculpture
clay or your cone pads for firing. Grog the clay, place the cones in it,
stab it a few times and place it in the kiln. Never lost one yet.
Good luck,

Dan Tarro
Oak Tree Stoneware
Ham Lake, MN

Millspaugh KC (Kim) at MSXWHWTC on wed 13 aug 97

I have on numerous occasions dried greenware in my oven. I mainly do
flat pieces. The only problem I have sometimes is if I do it too fast
the edges will curl. I usually wait till the piece is leatherhard to
avoid that. I keep the oven on low (~120F) for a few hours then cut it
off for an hour or so and turn the oven back on. I have a gas oven.
Don't know if that contributes to my success.

I also dry work that is 8-14" high with 1-1/2" thick walls. I use the
same oven procedure to dry them if I'm in a bind. I spend the afternoon
babying them along like I mentioned before and then keep the oven on
overnight. I may be too cautious but I've only lost a few of the
thicker pieces. I only do this in an emergency and then I'd keep it a
secret because of all the apalled looks on other's faces. When you're
time is limited you find ways to push the process.

At the University of Houston, where I studied, we used to soak the
greenware overnight before bisque-ing. Most was dry but lot of the work
was leatherhard. The kilns were large Cress's with 6 temp controls. We
turned every other one on low and kept the lid cracked. This eliminated
most surprises when firing student work. I have never tried this in my
smaller electric kilns in my studio.

Kim Millspaugh
kcmillspaugh@shellus.com

>----------
>From: Sandy Hensen[SMTP:MtnPottery@aol.com]
>Sent: Monday, August 11, 1997 5:11 AM
>To: Multiple recipients of list CLAYART
>Subject: Re: Firing Wet Ware in Electric Kiln
>
>----------------------------Original message----------------------------
>I dry my sculptures in my oven all the time at 150 but I had about 10 of
>them blow up in my electric kiln which was set on 10% for several hours. My
>sculptures are about 12 inches high and 2 to 3 inches wide solid clay. My
>electric kiln is an Aim kiln that you can hold at any % you want. Hope this
>helps Sandy in rainey Boulder, Co
>

Nancy Jervey on fri 15 aug 97

I have often put pots at the leather hard, just trimmed stage, on top of
my electric kiln. I have stacked them three levels high rim to rim, or
foot to foot. Leave them there through the entire firing, and cooling.
They can then be the next load in the kiln. All a beautifully dried,
even large plates.

Good luck,
Nancy in Maine