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 | Whip Mix Corporation | Whip Mix Corporation | Whip Mix Corporation |
| Item | Soldering Investment | Cristobalite Investment Material | Formula 1 Universal Investment | ResinVest | X-20 Chrome Phosphate Investment |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | Multi-purpose SOLDERING INVESTMENT isideal for soldering all types of dental alloys, including chrome-cobalt. Its fine texture mixes readily with | The principal ingredient, CRISTOBALITE, gives high thermal expansion, even at comparatively low temperatures. It is possible to use the same creamy | This high-performance, universal investment works equally well for all alloys and pressable ceramics. Its wide expansion range allows the technician | Designed for burning out printed or milled resin patterns for crowns, bridges, or frameworks, ResinVest is a fiber-reinforced material that resists | A vastly improved casting investment for making chrome partial denture frameworks. For casting any chrome partial alloy. Refractory Cast is hard, |
| Quantity | 2 kg (4.5 pounds) Package
11 kg (25 pounds) Carton | 144 - 50 g Package | 4 - 2.5 kg Package
100 - 100 g Package
150 - 60 g Package
50 - 100 g Package
50 - 60 g Package
40 - 150 g Package
340 mL Bottle
1 L Bottle
6 Pack - 340 mL Bottles
6 Pack - 1 L Bottles | 100 g Package; 55 lbs. Carton | 22 kg (50 pounds) Carton
50 - 400 g Packages
25 kg (55 pounds) Carton
6 Pack - 340 mL Bottles
6 Pack - 1 L Bottles
340 mL Bottle
1 L Bottle |
| Compressive Strength | Wet - 1,200 psi (9 MPa) | Wet - 700 psi (5 MPa) | Wet - 1.350 psi (9.2 MPa) | 1,350 psi (9.2 MPa) | Wet - 2,500 psi (17 MPa) |
| Working Time | 2 - 3 minutes | 3 minutes | 6 - 8 minutes | 6 to 8 Minutes | 4 - 5 minutes |
| Set Time | 15 minutes | 16 minutes | Not Available | 30 Minutes Minimum | Not Available |
| Material Type | Gypsum Bonded Investment | Gypsum Bonded Investment | Phosphate Bonded Investment | Phosphate Investment | Phosphate Bonded |
| Indication For Use | Low and High Fusing Precious Metals | Low Fusing Crown and Bridge Alloys | Universal Investment for All Alloys and Pressable Ceramics | Burning out milled or printed resin patterns | Casting Partials with Chromium Dental Alloys |
| Liquid / Powder Ratio | 24 mL / 100 g | 30 mL / 100 g | 22 mL / 100 g | 22 ml/100 g | 11 mL / 100 g |
| Setting Expansion | 0.25 % | 0.5 % | 1.6 % | 1.6 Percent | 0.2 % |
| Ready For Burnout | 30 Minutes | 30 minutes | 15 minutes | Yes | 30 - 60 minutes |
| Hygroscopic Expansion | N / A | Not Available | N / A | Not Available | N / A |
| Thermal Expansion | 700° C (1,300° F) - 0.60 % | 650º C (1,200º F) - 1.25 % | 0.65 % | 0.65 Percent | 700 -- 1,000° C (1,300 -- 1,800° F) - 0.90 % |
| Metal or Ringless Technique | N / A | Metal Only | Metal or Ringless | Both | Metal or Ringless |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |