GLAZE:
The shiney glass coating fused
with heat to the surface of ceramics / pottery. It is a protective
and decorative technique. Glazing dates back thousands of years.
Archiologists use the quality of a cultures ceramics / pottery as
a measure of accomplishment, sophistication and trade.
GLAZE CART:
A specially built cart, that transports
a “tub” of glaze for dipping.
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GLAZE DIPPING:
Instead of brushing glaze onto ware,
the piece can be dipped into a vat of glaze. This method is fast, accurate
and efficient.
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GLAZE DRIPPING:
When you come right down to it,
the value of a pot is only cost of the materials that went into its creation.
A kiln shelf, on the other hand, is expensive to buy and lasts for years and
years. Which is more valable to YOU !
The shelf; of course.
Kiln shelves should be protected from melting / runny glaze with a layer
of kiln wash.
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GLAZE FIRING:
Pottery is typically fired twice;
1. the bisque firing to stablize, strengthen and shrink the piece; and
2. the glaze firing. The glaze firing is usually done at a slightly
lower temperture than the bisque firing. This is to faciilitate
the glaze fitting the bisque fired piece better.
GLAZE FIT:
Glaze needs to flow evenly over a
pot when it is hot and molten. As it cools, it should shrink enough
to fit tightly over the surface of the pot. Ideally, the glaze
should shrink slightly more than the clay body of the pot.
If it srinks too much it will crackle. If it continues to shrink;
at an extrordinary rate it will actually fall off. For example,
if earthenware glaze were mistakenly applied to stoneware. The
glaze would fall off.
GLAZE SCUM:
A mysterious bacteria, that can be found
growing in between the layers of water and glaze compounds in glaze that
has settled.
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GLAZE TONGS:
A device much like hand pliers used to hold
small pieces when immersed in glaze. Each side of the “gripper” has
two points or tongs.
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GREENWARE:
Raw pottery ; formed, dried and
ready to fire.
GROG:
Fired clay; broken and ground to a
coarse sand-like texture. Grog is wedged into a clay body to strengthen
it; the same way pebbles are addeed to concrete to discourage breaking
or cracking.
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