10. Silicones as Mold-Making Elastomers
نویسنده
چکیده
Long ago, people must have realised that clay could be used to take imprints of simple objects like a leaf, or later, a coin. Carefully withdrawing the clay gave a negative of the object or a mold in which other materials like plaster could be cast to reproduce the original. Clay is still used today to make molds, particularly to reproduce museum pieces like statues, not only because it is inexpensive, but also because clay is water washable and unlikely to contaminate or stain any valuable and unique original.
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