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A hollow wax positive of the
original is cast from the mould by slushing hot wax into it.
The
thickness of the wax corresponds to the eventual thickness of the bronze
eg.10mm.
The
wax positive is worked on to make good any imperfections
e.g. seamlines, air bubbles,etc....

A
network of wax rods (sprues) and a funnel- like cup are fitted onto
the positive.
These become the channels for the molten metal to travel to the job
later in the process.
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