1) I began by collecting up the materials I would need to assemble a mould in order to cast the bird mask sculpt. This included a flat piece of MDF, a flexible strip of plastic to form the walls, and a hot glue gun.
2) The next step was securing the sculpt to the MDF surface. The chavant clay stuck to the board itself, but I wanted to be extra careful the sculpt wouldn't come loose while being cast; it could float up through the silicone mid-set and ruin the cast. To secure it I simply smoothed out the 'neck' with some air dry clay. Creating this sloped shape also meant that once the mask was cast it would have a plug-like, spread out base which I could use to stop the head slipping out of the neck hole of the rest of the puppet.
3) Next I created a circular frame for the sculpt, making sure I had at least half a centimetre on every side to ensure a good thickness of mould; if the mould was too thin then there was the potential risk of the silicone breaking. The plastic was taped into place then hot glued to the base, sealing the bottom so no silicone would escape.
4) The last stage of preparation was collecting all equipment needed to begin mould making. This included the two-part silicone, disposable gloves, a set of scales, the sculpt, a mixing pot, a mixing stick and newspaper to protect the surfaces.
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