William & Susan Schran User on wed 21 sep 11
On 9/21/11 8:13 AM, "Bruce Bowers" wrote:
> I have a glaze that I have been using for years in the cool spots in wood
> kilns. It is a foolproof liner, but a very uninteresting exterior
> glaze.....although it takes ash well as a liner. Here it is:
> PV Clay 50
> G. Borate 50
> Zircopax 10
> I went to the studio a couple of days ago.....getting ready to line my
> "cool pots", and this glaze turned into something the consistency of thic=
k
> pudding! I've never had this happen before.
Most likely the Gertsley is the pudding maker.
I always add a small amount of saturated soda ash solution to prevent this.
Bill
--
William "Bill" Schran
wschran@cox.net
wschran@nvcc.edu
http://www.creativecreekartisans.com
Bruce Bowers on wed 21 sep 11
Hi All,
I have a glaze that I have been using for years in the cool spots in wood
kilns. It is a foolproof liner, but a very uninteresting exterior
glaze.....although it takes ash well as a liner. Here it is:
PV Clay 50
G. Borate 50
Zircopax 10
I went to the studio a couple of days ago.....getting ready to line my
"cool pots", and this glaze turned into something the consistency of thick
pudding! I've never had this happen before.
I am going to mix a fresh batch and use it right away.
Does anyone have any input on why this thickening may have occurred and how
it can be prevented.
Thanks,
Bruce Bowers
_www.bowerswoodfireandpics.com_ (http://www.bowerswoodfireandpics.com)
June on wed 21 sep 11
This is what happens over time, with that much Gerstley borate. Just add so=
me Darvan 7 to deflocculate it. Add a tiny bit at a time till it get the co=
nsistency you want. The other option is to dry out the whole batch and then=
rehydrate it.
June
http://wwww.shambhalapottery.blogspot.com
http://groups.yahoo.com/group/sodasaltfiring/
http://www.shambhalapottery.com
----- Original Message -----
From: Bruce Bowers
To: Clayart@LSV.CERAMICS.ORG
Sent: Wed, 21 Sep 2011 12:13:39 -0000 (UTC)
Subject: Glaze Like Pudding
Hi All,
I have a glaze that I have been using for years in the cool spots in wood
kilns. It is a foolproof liner, but a very uninteresting exterior
glaze.....although it takes ash well as a liner. Here it is:
PV Clay 50
G. Borate 50
Zircopax 10
I went to the studio a couple of days ago.....getting ready to line my
"cool pots", and this glaze turned into something the consistency of thick
pudding! I've never had this happen before.
I am going to mix a fresh batch and use it right away.
Does anyone have any input on why this thickening may have occurred and how
it can be prevented.
Thanks,
Bruce Bowers
_www.bowerswoodfireandpics.com_ (http://www.bowerswoodfireandpics.com)
John Britt on wed 21 sep 11
Sounds like it flocculated over time.=3D20
I don't have much experience with this glaze, only used it a few times.=3D2=
0=3D
=3D20
To test it, take a cup and put one or two of a deflocculant (sodium silic=
=3D
ate ,=3D20
darvan 7 , darvan 811) in and stir. See if that thins it. Then try appli=
=3D
cation and=3D20
test fire. Careful not to put in too much or you will have to bake it ou=
=3D
t with=3D20
Epson Salts. Just catch it as it goes from pudding to a normal thickness =
=3D
not the=3D20
really fluid thickness of a deflocculated slip.
Hope it helps,
John Britt
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