fernandez. on mon 21 may 01
----- Original Message -----
From: CINDI ANDERSON
To:
Sent: Monday, May 21, 2001 1:55 AM
Subject: Blisters / Craters on bowls only
> Hi
> I'm stumped. Over many firings, different clay bodies, different
commercial glazes, my bowls almost always have blister / crater things
(often sharp) and my vases, mugs, etc never do. Even in the same load with
the same glaze. The only thing different about my bowls is they are
trimmed and therefore usually a little thinner. The problem is not pinholes
where the trimming occured. It happens on the inside as well. Any ideas?
>
> Fire oxidation, 07 bisque, cone 5-6 glaze.
>
> Thanks
> Cindi
> Fremont, CA
On my opinion craters and blister on bolws and probably cups depend from a
combination of heat ( in a close shape there is more heat than in a open
one) and quantity of glaze probably a little bit to runny(?). I suggest to
lower a little bit your top temperature a soak a little more .
I hope my suggestions are good
Margherita
http://www.studiofernandez.com/
>
>
____________________________________________________________________________
__
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at
melpots@pclink.com.
| |
|
