Malone & Dean McRaine on thu 26 mar 98
Anyone ever control or intentionally change the ph in their glazes? I'm
finding that acidity/alkalinity variations in water and hence in my glazes
have a large impact on the glaze application and the fired glaze. Reference
my earlier thread 'Glaze Nightmare'. Is it only a change in flocculation or
are there other factors as well? I'd be interested in any comments on this
factor in glazes.
Dean
Talbott on fri 27 mar 98
Check out: http://digitalfire.com/ Tony Hansen can tell you all about
it... ...Marshall
>----------------------------Original message----------------------------
>Anyone ever control or intentionally change the ph in their glazes? I'm
>finding that acidity/alkalinity variations in water and hence in my glazes
>have a large impact on the glaze application and the fired glaze. Reference
>my earlier thread 'Glaze Nightmare'. Is it only a change in flocculation or
>are there other factors as well? I'd be interested in any comments on this
>factor in glazes.
>
>Dean
http://www.PotteryInfo.com
101 CLAYART MUGS (Summer 1998)
2ND ANNUAL CLAYARTERS' GALLERY - NAPLES, MAINE (Summer 1998)
E-MAIL ME FOR APPLICATIONS
Celia & Marshall Talbott, Pottery By Celia, Route 114, P O Box 4116,
Naples, Maine 04055-4116,(207)693-6100 voice and fax,(call first)
---------------------------------------------------------------------
George Mackie on fri 27 mar 98
I have some glazes that form hexagonal crystals gradually after mixing with
water. The crystals may be lithium borate as they only happen in glazes
containing Li and Gertsley b. Both of these are somewhat soluble in water.
There was some discussion about this a few months ago. Anyway, I have since
found that adjusting the ph of the slurry to 7.0 stops the crystals from
forming. George
At 07:47 AM 3/26/98 EST, Malone & Dean McRaine wrote:
>----------------------------Original message----------------------------
>Anyone ever control or intentionally change the ph in their glazes? I'm
>finding that acidity/alkalinity variations in water and hence in my glazes
>have a large impact on the glaze application and the fired glaze. Reference
>my earlier thread 'Glaze Nightmare'. Is it only a change in flocculation or
>are there other factors as well? I'd be interested in any comments on this
>factor in glazes.
>
>Dean
>
>
Abbey of New Clairvaux on sat 28 mar 98
George,
I have a glaze that does the same thing. However my glaze only does it in
cold weather, so I keep the glaze warm thru the winter. Or, I just heated
it up and the crystals are gone. Could I ask how you adjust the glaze to
the correct ph level.
Thanks for the information.
Father Anthony
-----Original Message-----
From: George Mackie
To: Multiple recipients of list CLAYART
Date: Friday, March 27, 1998 5:45 AM
Subject: Re: Controlling ph in glazes
----------------------------Original message----------------------------
I have some glazes that form hexagonal crystals gradually after mixing with
water. The crystals may be lithium borate as they only happen in glazes
containing Li and Gertsley b. Both of these are somewhat soluble in water.
There was some discussion about this a few months ago. Anyway, I have since
found that adjusting the ph of the slurry to 7.0 stops the crystals from
forming. George
At 07:47 AM 3/26/98 EST, Malone & Dean McRaine wrote:
>----------------------------Original message----------------------------
>Anyone ever control or intentionally change the ph in their glazes? I'm
>finding that acidity/alkalinity variations in water and hence in my glazes
>have a large impact on the glaze application and the fired glaze.
Reference
>my earlier thread 'Glaze Nightmare'. Is it only a change in flocculation
or
>are there other factors as well? I'd be interested in any comments on this
>factor in glazes.
>
>Dean
>
>
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