Dental investment materials are used to encase the wax designed for the lost wax casting technique. These materials are usually available as a powder that is mixed with water and then used to encase the wax design. These materials solidify and can withstand the heat of the casting furnace to hold the precise shape left behind when the wax is burned out. Different gypsums are designed for use with different dental alloys or other materials, so be sure to select the proper gypsum for the case at hand.
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| Company | Whip Mix Corporation | Whip Mix Corporation |
| Item | Polyvest Refractory Die Material | ResinVest |
| Price | Inquire | Inquire |
| Description | POLYVEST Refractory Die Material is formulated with a coefficient of thermal expansion to closely match today's newer porcelains. With its controlled | Designed for burning out printed or milled resin patterns for crowns, bridges, or frameworks, ResinVest is a fiber-reinforced material that resists |
| Quantity | 24 - 60 g Package
6 Pack - 340 mL Bottles
6 Pack - 1 L Bottles
340 mL Bottle
1 L Bottle | 100 g Package; 55 lbs. Carton |
| Compressive Strength | Wet - 6,000 psi (42 MPa)
Dry - 6,500 psi (48 MPa) | 1,350 psi (9.2 MPa) |
| Working Time | 2 minutes | 6 to 8 Minutes |
| Set Time | Not Available | 30 Minutes Minimum |
| Material Type | Refractory Die Material | Phosphate Investment |
| Indication For Use | Refractory Investment - Direct Firing Ceramics | Burning out milled or printed resin patterns |
| Liquid / Powder Ratio | 22 mL / 100 g | 22 ml/100 g |
| Setting Expansion | 0.8 % | 1.6 Percent |
| Ready For Burnout | Not Available | Yes |
| Hygroscopic Expansion | N / A | Not Available |
| Thermal Expansion | 500° C, 2nd firing - 0.65% | 0.65 Percent |
| Metal or Ringless Technique | N / A | Both |
| Get Info | Not Available | Not Available |