Marley Wolhud on thu 25 jun 98
Okay another question (since everyone has been so helpful). My
electrician is booked for a month, and can't hook up my kiln until the
end of July. I would really like to start working on some tiles, but
don't know how long they can sit leatherhard before something happens to
them. If they sit on a shelf for a month before being bisque fired,
what will happen?
as always, thank you!
Anne W. Bracker on fri 26 jun 98
>----------------------------Original message----------------------------
>Okay another question (since everyone has been so helpful). My
>electrician is booked for a month, and can't hook up my kiln until the
>end of July. I would really like to start working on some tiles, but
>don't know how long they can sit leatherhard before something happens to
>them. If they sit on a shelf for a month before being bisque fired,
>what will happen?
As long as your tiles don't get knocked off the shelf, there is nothing
wrong with letting them sit for extended periods of time before firing.
The longer they sit the more water molecules will escape before firing.
Don't forget, though, that even though they sit for a month and feel
TOTALLY dry, there may still be chemically bound waters in that clay, and
they will stay there until they evaporate (ie. during the firing) Good
luck!
Cindy Bracker
Bracker's Good Earth Clays, Inc.
1831 E 1450 Road
Lawrence, KS 66044
1 785 841-4750 OFFICE
1 785 841-8142 FAX
1 888 822-1982 ORDER LINE
bracker@midusa.net E-MAIL
"Clay Ain't Dirt"
Des Howard on fri 26 jun 98
At 12:10 25/06/98 EDT, you wrote:
>----------------------------Original message----------------------------
>Okay another question (since everyone has been so helpful). My
>electrician is booked for a month, and can't hook up my kiln until the
>end of July. I would really like to start working on some tiles, but
>don't know how long they can sit leatherhard before something happens to
>them. If they sit on a shelf for a month before being bisque fired,
>what will happen?
>
>
>as always, thank you!
>
Marley
Usually if raw pots sit on a shelf for a month they just get dry. Around
here they are more likely to get:
- chewed by native rodents
- knocked off the shelf by possums
- built on/in/under/over by mud wasps
- condensation drips drill holes in them
- freeze in the frost, flop when thawed (the new wall will stop this)
Then there is PPBT (Possible Post Bisque Trauma):
- knocked of the shelf by possums
- built on/in/under/over by mud wasps
- sprayed with sparks from angle grinders (iron
specks/spots/flecks/patches/lumps)
- dipped in shino glaze & not enough room in kiln (salt in glaze spalls pot
to death)
Des
Des & Jan Howard
Lue Pottery
Lue NSW 2850
Australia
61 02 6373 6419
djhoward@lisp.com.au
Des & Jan Howard
Lue Pottery
Lue NSW 2850
Australia
61 02 6373 6419
djhoward@lisp.com.au
Bill Palmer on fri 26 jun 98
A lot of tile manufacturers have greenware tile sitting around for a lot
longer than that before the pieces are fired. In some cases it might go
unfired for years. Often tile is only fired once.
Bill Palmer, Marin Ceramic Supply
Joy Holdread on sat 27 jun 98
In a message dated 98-06-25 12:17:19 EDT, you write:
> Okay another question (since everyone has been so helpful). My
> electrician is booked for a month, and can't hook up my kiln until the
> end of July. I would really like to start working on some tiles, but
> don't know how long they can sit leatherhard before something happens to
> them. If they sit on a shelf for a month before being bisque fired,
> what will happen?
>
They will collect dust. You will be sure they are dry. As far as I know you
can let they dry in a low moisture environment for hundreds of years, choose
to fire or recycle at any point.
JOY
Cindy on tue 30 jun 98
Marley,
If they sit on your shelf for that long, they will go from leatherhard to
bone dry. That's all. Long drying periods are good.
Cindy Strnad
Earthen Vessels
Custer, SD
USA http://blackhills-info.com/a/cindys/menu.htm
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