Wanda Holmes on mon 18 nov 02
For those of you who may be interested, I just completed a test of
firing Ron's & John's calcium semi-matte and zinc semi-matte glazes to
cone 8 and they came out fine. The zinc-semi-matte did develop
suspended bubbles in the glass, but not unattractively so. The calcium
test with .2% cobalt carbonate and 4% copper carbonate developed lovely
light blue speckles where the glaze pooled.
Wanda
Ann Brink on mon 18 nov 02
Wanda- thanks for reporting on this. Were these on a vertical surface?
What I'm getting at is - did they run at all?
Ann Brink in Lompoc CA, expecting another 75deg. F. day- lovely!
----- Original Message -----
Subject: Ron's & John's Glazes to Cone 8
> For those of you who may be interested, I just completed a test of
> firing Ron's & John's calcium semi-matte and zinc semi-matte glazes to
> cone 8 and they came out fine. The zinc-semi-matte did develop
> suspended bubbles in the glass, but not unattractively so. The calcium
> test with .2% cobalt carbonate and 4% copper carbonate developed lovely
> light blue speckles where the glaze pooled.
>
> Wanda
Wanda Holmes on mon 18 nov 02
I do tile - fired lying flat in the kiln, so I can provide little
insight on the probability of running. I can say that I did not clean
the glaze off the side edges of the tile and there was no indication of
these small glaze deposits running.
w.
-----Original Message-----
From: Ceramic Arts Discussion List [mailto:CLAYART@LSV.CERAMICS.ORG] On
Behalf Of Ann Brink
Sent: Monday, November 18, 2002 10:03 AM
To: CLAYART@LSV.CERAMICS.ORG
Subject: Re: Ron's & John's Glazes to Cone 8
Wanda- thanks for reporting on this. Were these on a vertical surface?
What I'm getting at is - did they run at all?
Ann Brink in Lompoc CA, expecting another 75deg. F. day- lovely!
----- Original Message -----
Subject: Ron's & John's Glazes to Cone 8
> For those of you who may be interested, I just completed a test of
> firing Ron's & John's calcium semi-matte and zinc semi-matte glazes to
> cone 8 and they came out fine. The zinc-semi-matte did develop
> suspended bubbles in the glass, but not unattractively so. The
calcium
> test with .2% cobalt carbonate and 4% copper carbonate developed
lovely
> light blue speckles where the glaze pooled.
>
> Wanda
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