Almost all development of thermoplastic systems is taking place in North America. EOS in Germany has a line of polymers for its EOSINT machines that includes polystyrene for investment casting, a nylon-like material, and a polymer-coated sand material. EOS uses the sand in its EOSINT-S device to make one-of-a-kind sand cores for precision sand casting. In the European market there has been considerable interest in this product, especially for those applications that require very complex sand cores.

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Published: March 1997; WTEC Hyper-Librarian