Prima-Rock High Strength Die Stone - Whip-Mix Corporation

Prima-Rock has the highest compressive strength of any Whip Mix die material. Vacuum spatulation provides a smooth mix that flows readily. It’s compatible with all types of impression materials and upon setting, Prima-Rock develops a dense surface with superior hardness.

  • Working time: 6-8 minutes
  • ISO Type 4
  • Expansion: 0.13%
  • 17,000 psi
  • Water to powder ratio: 20:100
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