Wes Swenson on sat 9 mar 02
Hello, I am considering single firing stoneware to ^10 in reduction and
wonder if someone could either direct me to information regarding the
proper method for glazing greenware, or share some useful tips that have
worked for you? Of particular interest is how to glaze the inside of
teapots and jars (pour and swirl?); also, I suspect moisture content of the
clay prior to glazing is an important issue. Any help on this topic will
be much appreciated. Wes
Tommy Humphries on sat 9 mar 02
The method you use will depend a lot on your clay, and the way you make your
pots. In the long run it will come down to experimentation on your part, but
I will offer a few insights.
The thinner the pot, the more moisture content it should have before
glazing. A bone dry super thin pot would probably disintegrate before you
pulled it out of the bucket.
Spray whenever possible, as you get much less moisture soaked into the pot
this way.
Do not dip a green pot for as long as a bisque...dip twice if necessary,
letting the pot dry between dips.
Be prepared for some unexpected results. Since the pots have not been
fired, some of the clay will wash off into the glaze tub, usually floating
on the surface. Keep this stirred down, or you might see dark outlines of
any runs/sags/drips on the surface after firing due to the concentration of
this clay at the leading edge of the run. This is especially noticeable
with white glazes...you might see a beige curving line going around the pot.
For complicated forms...teapots...until you become proficient at raw
glazing, you might want to still bisque these forms. Any weak joints will
not fare well being subjected to wet glaze.
You will have to experiment on the correct SG for the glaze, to get it just
right for the dryness of the pot and the speed of the dip...you want the
glaze to stay fluid on the pot long enough to run all the way back to the
bottom of the pot when set aside to dry...unless you want to hold the pot
inverted till it dries.
These are just a few pointers...raw glazing instruction could fill several
books (and I think it does!)
Tommy
----- Original Message -----
From: "Wes Swenson"
To:
Sent: Saturday, March 09, 2002 7:41 AM
Subject: Glazing Techniques For Single Firing?
> Hello, I am considering single firing stoneware to ^10 in reduction and
> wonder if someone could either direct me to information regarding the
> proper method for glazing greenware, or share some useful tips that have
> worked for you? Of particular interest is how to glaze the inside of
> teapots and jars (pour and swirl?); also, I suspect moisture content of
the
> clay prior to glazing is an important issue. Any help on this topic will
> be much appreciated. Wes
>
>
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