November 22, 2002, Newsletter Issue #114: Project: Simple plaster mold 2

Tip of the Week

Mixing the plaster.
To a bucket 1/2 full of water, add potters plaster by the scoop and distribute evenly over the surface of the water keep this rhymical action going until you notice islands of grey plaster forming through the surface, keep sprinkling the plaster onto the watery areas until all plaster is damp and grey. Place hand into bucket and stir, trying not to break the surface as this introduces air. When mixed pour your plaster into your waiting mould surround.

Once you have your plaster poured, you simply place your balloon or ball (if a ball is used it would be advisable to seal it with soft soap before use), into the plaster to half cover the ball. You can tape it into place while the plaster heats, cools and sets.
Remove the ball or balloon and container, scrape off any rough spots, leave to dry in a cool dry place for a week and it will be ready to use.

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