Categories: Gypsums & Investments : Investment
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Polyvest Refractory Investment, 24/60 g Preweighed Packets - Whip-Mix Corporation

Polyvest Refractory Investment is a fine grained material for smooth surfaces and accurate reproduction.

  • High strength allows multiple firings, resists fractures and abrasions
  • Compatible with porcelains with CTE of 13.9 or lower
  • Mixing ratio: 22/100
  • Working time: 2 minutes
  • Thermal expansion: 0.65%
  • 6500 psi
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