Liz Willoughby on sat 31 may 03
Robert, you have to dissolve your soda ash in hot water before you
add it to the glaze. I usually mix up my glaze first, sieving it,
and then sieve the soda ash mixture into the glaze. Then sieve the
whole glaze mixture one more time.
Meticky Liz
>I mixed up a batch of Karen's Starshine today (from the Cushing handbook)
>There is soda ash in the recipe. I measured the ingredients and added them
>to water. When I started to mix the glaze, the soda ash had become a
>chunk. I tried break it up, but was unable to get it to dissolve. Hard.
>Rocklike. Tossed it out. After sieving.
>Any hints as to how to successfully mix this into a glaze?
>
>Thanks in advance for any light that can be shed on this.
>
>Robert Klander, Wild, Wonderful (WET) West Virginia
--
Liz Willoughby
RR #1
2903 Shelter Valley Rd.
Grafton, Ontario
Canada
K0K 2G0
905-349-3130
lizwill@phc.igs.net
Earl Brunner on sat 31 may 03
Dissolve the soda ash in enough HOT water to fully dissolve it, then add
more water and the rest of the ingredients.
-----Original Message-----
From: Clayart [mailto:CLAYART@LSV.CERAMICS.ORG] On Behalf Of Robert
Klander
Sent: Saturday, May 31, 2003 3:08 PM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Soda Ash in Glaze - Help
I mixed up a batch of Karen's Starshine today (from the Cushing
handbook)
There is soda ash in the recipe. I measured the ingredients and added
them
to water. When I started to mix the glaze, the soda ash had become a
chunk. I tried break it up, but was unable to get it to dissolve.
Hard.
Rocklike. Tossed it out. After sieving.
Any hints as to how to successfully mix this into a glaze?
Thanks in advance for any light that can be shed on this.
Robert Klander, Wild, Wonderful (WET) West Virginia
Rod on sat 31 may 03
Regarding Soda Ash,
Another important thing about soda ash is that the regular Na2Co3 (Dense
Soda Ash) takes some time
to go into solution. Your results will vastly differ from mixing day to
several days later. It helps
to dissolve the ash in VERY hot water. This allows the soda to go into
solution faster. Alternatively
you can (really read "should") let the glaze batch sit for several days
before application.
This is in contrast to the decahydrate Na2Co3.10H20 thanks to those water
molecules attached this soda
ash will readily disperse into water without any difficulty. This is
commonly referred to as Washing Soda.
Anybody out there know how to get your hands on the decahydrate? I would
really like some...So far I found
one company that will sell me some and I was most excited until they said,
"How many train car loads will
you be requiring monthly" Obviously thus made me chuckle even though it was
bad news .....
Everything is possible,
Rod
> It is best to dissolve the soda ash first.
> ............
> If you measure out the ingredients, add water and blunge it quickly it
> will work too. Just don't let it sit.
> ..............
> John Britt
> Penland Clay
Robert Klander on sat 31 may 03
I mixed up a batch of Karen's Starshine today (from the Cushing handbook)
There is soda ash in the recipe. I measured the ingredients and added them
to water. When I started to mix the glaze, the soda ash had become a
chunk. I tried break it up, but was unable to get it to dissolve. Hard.
Rocklike. Tossed it out. After sieving.
Any hints as to how to successfully mix this into a glaze?
Thanks in advance for any light that can be shed on this.
Robert Klander, Wild, Wonderful (WET) West Virginia
John Britt on sat 31 may 03
Robert,
It is best to dissolve the soda ash first.
If you measure out the ingredients in the recipe and then add water and
let it sit the soda ash will form a hard clump. (The same thing with
happen with carbon trap shinos or any other glaze with large amounts of
soda ash.)
If you measure out the ingredients, add water and blunge it quickly it
will work too. Just don't let it sit.
Hope that helps,
John Britt
Penland Clay
Mac and Judi Buchanan on sun 1 jun 03
Rod, I have a box in the studio bought at the local super market. Check
the detergent section.
This is
> commonly referred to as Washing Soda.
>
> Anybody out there know how to get your hands on the decahydrate?
David Hendley on sun 1 jun 03
Even thought this seems to be the consensus on Clayart, I have never
found the need to dissolve soda ash in hot water before adding it to a
glaze.
I simply dry-mix the soda ash in with the other ingredients (not trying for
a through mixing but just dispersing the grains) and add water as usual.
No problems with hard lumps.
David Hendley
Maydelle, Texas
david@farmpots.com
http://www.farmpots.com
> -----Original Message-----
> to water. When I started to mix the glaze, the soda ash had become a
> chunk. I tried break it up, but was unable to get it to dissolve.
> Hard.
> Rocklike. Tossed it out. After sieving.
> Any hints as to how to successfully mix this into a glaze?
>
Ababi on mon 2 jun 03
I think the problem appears when you try to use again the glaze after a month or so.
The glaze crystallize. It is better to make as much as you need for for each time you
glaze.
Ababi Sharon
Glaze addict
Kibbutz Shoval Israel
ababisha@shoval.org.il
http://members4.clubphoto.com/ababi306910/
http://www.israel-ceramics.org/membersGallery/personalpage.asp?MID=507
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