The wax must be poured into the mould and “slushed” around multiple times at specific temperatures for each pour.After about 5 or six pours (waiting for the wax to harden at each pour) the wall of the cast should be about 5-6mm thick. Ready to demould.Each cast is going to be a little bit rough around the edges to begin with.The seam must be removed by “chasing”. Its a very difficult business, because the wax has a very low melting point and can’t be handled too much.The brass plates were etched by a company in Britain. They worked from very precise digital files I sent them to Photo-etch the sheet in an acid bath.
Making the “waxes” for the foundry.. These are the pieces they making investment moulds from, into which they’ll be pouring the bronze.
Here are the raw bronzes just out of their plaster jackets, followed by the chased and patinated results.
Colm Lawton 