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Prototype Molding

ELASTOSIL® M silicone rubber grades are some of the highest quality, most technically advanced materials used in vacuum casting. The properties of pourable, addition-curing ELASTOSIL® M silicone rubber have been specially tailored to the needs of vacuum casting for rapid prototyping and small-series production.


  • Good flow
  • Fast, shrink-free curing at room temperature, which can be greatly accelerated by heating
  • High transparency
  • High tear resistance
  • Outstanding long-term stability of the cured rubber’s mechanical properties
  • Excellent resistance to casting resins and polyamide


  • Visualization models
  • Working models
  • Pre-series models
  • Wax models
  • Small series