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| Credit: Paul Gardner httpswww.facebook.com |
It is a
consideration in stringer and murrini work that the pot be re-usable. This has
led to the development of stainless steel square pots. The thorough cleaning of these is difficult
even with a lot of banging. Containers with removal bases have been developed
as a result.
The
importance of a container with an integrated bottom is to ensure the glass is
contained within the pot. To be reusable, the pot can be lined with fibre on
sides and bottom. However, fibres can be drawn from the lining into the stream
of glass.
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| Credit: Paul Gardner |
If you
have a stainless-steel square with a removable bottom, the pot can be cleaned
more easily and does not need the fibre lining. It also allows easy switching
of bases with different hole sizes and shapes.
However,
some people have had the difficulty of the glass flowing out between the sides
and bottom of the pot and onto the floor of the kiln. Glass is heavy and can
float the much lighter stainless steel off the base, allowing the glass to flow
sideways as well as through the hole in the base.
This indicates that the stainless steel square should be weighted down. Placing kiln furniture
on top of the pot can avoid it being floated off the base piece. These can be
dams made from kiln shelves, dense fire brick, a small shelf, ceramic tiles, or
other kiln furniture. Putting the furniture on two opposing corners will be
enough to counteract the floating of the pot and still allow radiant heat to reach the glass.
Pots can be made from refractory materials too, such as vermiculite.
Liners for pots
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