barblund on mon 2 feb 04
Hi, Ron and others. I just notice your note about stacking pots in the =
bisque. Could my stacking just about everything rim to rim in the =
bisque cause troubles with the "bad" gasses not getting out? I do =
sometimes find bubbles and craters on some of the pots-in almost all of =
the glazes I use from time to time-soaking at the end seems to take care =
of some of it. I fire to ^04 for the bisque-electric- with the top 2 of =
the 3 peep holes open. Glaze fire is ^6-electric. I would appreciate =
further commentary on this!=20
Thank You, Barb from Bloomington
barblund@bluemarble.net
520 West 6th St.
Bloomington, IN 47404
812 339 8476
Ron Roy on thu 5 feb 04
Hi Barb,
Much depends on the amount of junk in your clay and how thick the clay is.
I do some work for a tile company in Florida and they had started stacking
the tiles to bisque fire them. There was this little circle of sightly grey
colour - in the middle of some tiles and they noticed it because they were
having some glaze problems with some of their tiles.
They like to fire fast and it was just a matter of the carbon not having
enough oxygen to burn off for the tiles inside the stack.
I suggest you slow your bisque firing down - especially between 700C and
the end - or stop stacking pots - or separate the stacking with wads so you
get better circulation inside.
Better still get a vent system - they are great for a constant supply of oxygen.
RR
>Hi, Ron and others. I just notice your note about stacking pots in the
>bisque. Could my stacking just about everything rim to rim in the bisque
>cause troubles with the "bad" gasses not getting out? I do sometimes find
>bubbles and craters on some of the pots-in almost all of the glazes I use
>from time to time-soaking at the end seems to take care of some of it. I
>fire to ^04 for the bisque-electric- with the top 2 of the 3 peep holes
>open. Glaze fire is ^6-electric. I would appreciate further commentary
>on this!
> Thank You, Barb from Bloomington
>
>barblund@bluemarble.net
>520 West 6th St.
>Bloomington, IN 47404
>812 339 8476
Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
Phone: 613-475-9544
Fax: 613-475-3513
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