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Reliefs
Shelled
Split
Sandwich
Contour
"French"
Slush Casts

Chapter 3: Mold Construction
Traditional Mold Making Methods

Slush Casting:

Hollow "Slush" Castings are used with plaster (to lessen the weight), waxes (to be cast in hollow metal) and chocolate (for liquid centers).
With plaster and cement, the wet material is poured into the mold and "worked" up the sides with a spatula or hands as it hardens. The idea is to make walls of consistent thickness.
Wax and chocolate will cool from the outside in. When this "skin" is the width you want, pour out the liquid center.
– Another type of slush cast is the "Press" cast where the casting medium is too thick to pour into the mold and must
AA life cast mold 7

Press Casting

be pressed in with your hands or other tools. The new polymer clays are one example of this and the softer versions can be used in high density (low water ratio) ArtFORM™ and Earthium™ molds.
– Yet another variation of the slush cast is called the "Ram" cast or die mold. This is used frequently in sheet metal fabrication and high production ceramic and plaster craft industries.
The mold consists of two parts; a male and a female. Each half is the 3 dimensional mirror image of the other with a small gap between them to accommodate the casting medium.
The two halves are rammed together with the casting medium in between. This forces the medium into the form defined by the male and female shapes.
High production ram dies are made of metal but, are frequently made of gypsum cements such as the ArtCAST™ for smaller uses and particularly for ceramics.
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ToP
1/18/03

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Contents of this web site (lifecast.net) and all life cast materials and other art and sculpture products or lifecast kit packaging, art techniques and sculpture instructions copyright © 1986-2002 by Mark S. Winn. All rights reserved. The terms BODY PARTS™, LifeCast™, ChildCast™, StudioPack™, ArtForm™, ArtCast™, Earthium™, Earthium(f/x)™, ShrinKast™, PolyART™, WaterTrap™, BlendBag™, Successful Creativity Guarantee™, LifeMask™, FastMask™ as well as the phrase "Make YourSelf Immortal!™" and any other art materials product or craft item denoted by a small 'TM' (such as in LifeCast™) are trademarks. The phrases life cast and life casting or the words lifecast and lifecasting are generic.
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