Charles M. Cwiek on sat 7 nov 98
I have been throwing for about three years now and have been firing at home
for about 8 months. I have been having a problem with pinholes in my final
glazed work. I have been firing to cone 6 using Opulence glazes. I slowed
the firing process down which helped somewhat but still noticeable pin
holing. So I increased the temperature of the bisque fire to 03. The
glazes didn't pinhole as much (although there were still pinhole), but the
glazes were very thin even though I glazed the same way I always have
(dipping). I have changing one thing each time I fire to try to fix this
problem, but still cannot. Has anyone had this trouble and if so, how did
you correct it? I am fairly new to pottery and really love it, however if
I don't get this glaze thing figured out, I could be convinced otherwise.
Thanks for your help.
James Norton on mon 9 nov 98
Charles M. Cwiek wrote:
> ----------------------------Original message----------------------------
> I have been throwing for about three years now and have been firing at home
> for about 8 months. I have been having a problem with pinholes in my final
> glazed work. I have been firing to cone 6 using Opulence glazes. I slowed
> the firing process down which helped somewhat but still noticeable pin
> holing. So I increased the temperature of the bisque fire to 03. The
> glazes didn't pinhole as much (although there were still pinhole), but the
> glazes were very thin even though I glazed the same way I always have
> (dipping). I have changing one thing each time I fire to try to fix this
> problem, but still cannot. Has anyone had this trouble and if so, how did
> you correct it? I am fairly new to pottery and really love it, however if
> I don't get this glaze thing figured out, I could be convinced otherwise.
> Thanks for your help.
Charles,
Are there more pinholes on the areas that have been trimmed, such as the lower
half of a bowl? If so, after trimming, wipe the areas with a sponge dampened
in slip and slightly burnish to seal any holes in the clay body.
Jim
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