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Life-casting limbs

Hand cast.

1: Materials     2: Casting     3: Separation    4: Making a positive  5: Removal

 

Slush coating.

If you have not already mixed your plaster (remember the tips from our 'dental casting' pages) you may keep the alginate from drying out, by covering the cast in damp cloth.

Once you have mixed the plaster, begin priming the inner surface of the cast, by running a slush of liquid plaster all around the mould; building up the layers with each application till enough material has stuck to the entire surface, leaving no areas bare.

Keep the edges clear of plaster and do not allow plaster to coat any of the alginate joins in the mould, as this will result not only in unsightly flash lines, but also will distort the finished work.

When you are satisfied that the whole surface has been primed, pour out any excess liquid from inside the mould, and bring the two halves carefully together - ensuring that the natural keys in the mould line up perfectly.  This is one of the most critical times in the process.  If you judge poorly, or any loose plaster is allowed to compromise the seal, your cast could be ruined.

Clamp the two halves in place with elasticated bands; then, with the open end face up, carefully top it up to the rim with the remaining plaster.

Filling the negative.

 

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  S y l a k    S p e c i a l   E f f e c t s

Sculptor / Model maker: Sylak  -   Make-up artist / Painter: Nicky
Assistant concept designer: Curt.

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This page was last reviewed by the WebMaster on 25/11/2000