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 | FastFire 15 Phosphate Investment | ResinVest |
| Price | Inquire | Inquire |
| Description | FASTFIRE 15 is a fine grain phosphate investment which requires only a 15 minute benchset before placing molds into a hot oven for rapid burnout. It | Designed for burning out printed or milled resin patterns for crowns, bridges, or frameworks, ResinVest is a fiber-reinforced material that resists |
| Quantity | 100 - 90 g Package
150 - 60 g Package
25 - 90 g Package
25 - 60 g Package
340 mL Bottle
1 L Bottle
6 Pack - 340 mL Bottles
6 Pack - 1 L Bottles
9 kg (2 pounds) Carton | 100 g Package; 55 lbs. Carton |
| Compressive Strength | Wet - 500 psi (3.4 MPa) | 1,350 psi (9.2 MPa) |
| Working Time | 7 - 9 minutes | 6 to 8 Minutes |
| Set Time | Not Available | 30 Minutes Minimum |
| Material Type | Fine Grain Phosphate | Phosphate Investment |
| Indication For Use | Universal Phosphate Investment for All Crown and Bridge Alloys | Burning out milled or printed resin patterns |
| Liquid / Powder Ratio | 27 mL / 100 g | 22 ml/100 g |
| Setting Expansion | 1 % | 1.6 Percent |
| Ready For Burnout | 15 minutes | Yes |
| Hygroscopic Expansion | N / A | Not Available |
| Thermal Expansion | 1.0 % | 0.65 Percent |
| Metal or Ringless Technique | Metal or Ringless | Both |
| Get Info | Not Available | Not Available |