Greg T. Johnston on wed 19 jan 00
My last raku firing was pretty bad. I got a lot of pots with bubbling
glaze. What might be my problem? Is it the glaze itself or might it be the
heating process?
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Marcia Selsor on wed 19 jan 00
Sounds like you do not hit temperature. Raku glaze goes through what I
can the "ready to flip " pancake stage prior to fluxing some. If you
have ever soldered, it is the same with solder, it bubbles , the fluxes smooth.
Marcia Selsor in Montana
"Greg T. Johnston" wrote:
>
> ----------------------------Original message----------------------------
> My last raku firing was pretty bad. I got a lot of pots with bubbling
> glaze. What might be my problem? Is it the glaze itself or might it be the
> heating process?
> ______________________________________________________
> Get Your Private, Free Email at http://www.hotmail.com
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Marcia Selsor
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Richard Jeffery on wed 19 jan 00
Greg, give us some clues...
what temperature did you fire? You can get bubbles from under fired or over
fired raku glaze - different bubbles though. If it's under fired, you might
get away with refiring, if the body hasn't cracked much.
Did the glaze melt smooth to a sheen before the bubbles, or didn't it get
that far?
Richard
Bournemouth UK
-----Original Message-----
From: Ceramic Arts Discussion List [mailto:CLAYART@LSV.UKY.EDU]On Behalf
Of Greg T. Johnston
Sent: 19 January 2000 19:14
To: CLAYART@LSV.UKY.EDU
Subject: Raku: Trouble Shooting
----------------------------Original message----------------------------
My last raku firing was pretty bad. I got a lot of pots with bubbling
glaze. What might be my problem? Is it the glaze itself or might it be the
heating process?
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
ababy sharon on wed 19 jan 00
Hallo Greg!
Me too...
The point is that the glaze, at list some of them behave like this in the
way to the melting point.
I don't forgive myself for the nice pieces I threw blaming the glaze! (But
this is the way we learn)
Ababi
----- Original Message -----
From: Greg T. Johnston
To:
Sent: Wednesday, January 19, 2000 09:13
Subject: Raku: Trouble Shooting
> ----------------------------Original message----------------------------
> My last raku firing was pretty bad. I got a lot of pots with bubbling
> glaze. What might be my problem? Is it the glaze itself or might it be
the
> heating process?
> ______________________________________________________
> Get Your Private, Free Email at http://www.hotmail.com
>
Rhubarb Household on thu 20 jan 00
Did your bubbles have smooth edges or sharp edges? This can indicate
whether the glaze is under or over fired.
Helen
----- Original Message -----
From: Greg T. Johnston
To:
Sent: Wednesday, January 19, 2000 11:13 AM
Subject: Raku: Trouble Shooting
> ----------------------------Original message----------------------------
> My last raku firing was pretty bad. I got a lot of pots with bubbling
> glaze. What might be my problem? Is it the glaze itself or might it be
the
> heating process?
> ______________________________________________________
> Get Your Private, Free Email at http://www.hotmail.com
>
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