Pat Walker on mon 13 aug 07
Two of my glazes have gelled in the bucket. I successfully used the glazes
but over time they became gell-like. Adding water ruins the glazes...they
semm over satuated and crack off or crawl. Any solution? Can they be
fixed? How do I prevent this problem?
John Post on mon 13 aug 07
I am guessing they have Gerstley Borate in them. Is this correct? and
if so, how much?
If you can send the recipes to the list for us to look at.
John Post
Sterling Heights, Michigan
>Two of my glazes have gelled in the bucket. I successfully used the glazes
>but over time they became gell-like. Adding water ruins the glazes...they
>semm over satuated and crack off or crawl. Any solution? Can they be
>fixed? How do I prevent this problem?
>
>______________________________________________________________________________
>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.
>
>
>
>
Richard Aerni on mon 13 aug 07
If they have become gelled because of soluble alkalis, such as those found
in Gerstley Borate-heavy glazes, or those with unwashed wood ashes, a
tablespoon or two of Darvan 7 should keep them in their original state
without any added water.
Good luck,
Richard Aerni
Rochester, NY
On Mon, 13 Aug 2007 19:41:32 -0500, Pat Walker wrote:
>Two of my glazes have gelled in the bucket. I successfully used the glazes
>but over time they became gell-like. Adding water ruins the glazes...they
>semm over satuated and crack off or crawl. Any solution? Can they be
>fixed? How do I prevent this problem?
>
>
Ron Roy on thu 16 aug 07
Sounds like your glazes are flocculated too much.
One way to stop that is to reformulate with materials that don't do that -
in other words materials that don't release soluble salts into the glaze.
Send me the recipes and I'll see what I can do.
ronroy@ca.inter.net (Ron Roy)
RR
>Two of my glazes have gelled in the bucket. I successfully used the glazes
>but over time they became gell-like. Adding water ruins the glazes...they
>semm over satuated and crack off or crawl. Any solution? Can they be
>fixed? How do I prevent this problem?
>
>______________________________________________________________________________
>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.
Ron Roy
RR#4
15084 Little Lake Road
Brighton, Ontario
Canada
K0K 1H0
| |
|
