Hard Rock Die Stone - Whip-Mix Corporation

Hard Rock is a high-strength, high-expansion die stone suited for polyvinyl or polyether impression materials. This material has a creamy and thixotropic consistency for good flow under vibration, yet is very stackable. Its extended working time facilitates multiple pours and a smooth, nonbrittle surface so dies trim easily without chipping.

  • Working time: 6-8 minutes
  • Water to powder ratio: 21:100
  • 15,000 psi
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