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 | ResinVest | Cristobalite Investment Material | PowerCast Phosphate Investment | Soldering Investment | X-20 Chrome Phosphate Investment |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | Designed for burning out printed or milled resin patterns for crowns, bridges, or frameworks, ResinVest is a fiber-reinforced material that resists | The principal ingredient, CRISTOBALITE, gives high thermal expansion, even at comparatively low temperatures. It is possible to use the same creamy | A carbon-free, fine-grain phosphate bonded investment for casting crown and bridge and ceramic alloys. This versatile all-purpose investment has been | Multi-purpose SOLDERING INVESTMENT isideal for soldering all types of dental alloys, including chrome-cobalt. Its fine texture mixes readily with | A vastly improved casting investment for making chrome partial denture frameworks. For casting any chrome partial alloy. Refractory Cast is hard, |
| Quantity | 100 g Package; 55 lbs. Carton | 144 - 50 g Package | 9 kg (20 pounds) Carton
150 - 60 g Package
100 - 90 g Package
6 Pack - 340 mL Bottles
6 Pack - 1L Bottles
340 mL Bottle
1 L Bottle | 2 kg (4.5 pounds) Package
11 kg (25 pounds) 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 | 1,350 psi (9.2 MPa) | Wet - 700 psi (5 MPa) | Wet - 700 psi (5 MPa) | Wet - 1,200 psi (9 MPa) | Wet - 2,500 psi (17 MPa) |
| Working Time | 6 to 8 Minutes | 3 minutes | 8 - 9 minutes | 2 - 3 minutes | 4 - 5 minutes |
| Set Time | 30 Minutes Minimum | 16 minutes | Not Available | 15 minutes | Not Available |
| Material Type | Phosphate Investment | Gypsum Bonded Investment | Carbon-free, Fine-grain Phosphate-bonded Investment | Gypsum Bonded Investment | Phosphate Bonded |
| Indication For Use | Burning out milled or printed resin patterns | Low Fusing Crown and Bridge Alloys | Casting Crown and Bridge and Ceramic Alloys | Low and High Fusing Precious Metals | Casting Partials with Chromium Dental Alloys |
| Liquid / Powder Ratio | 22 ml/100 g | 30 mL / 100 g | 23 mL / 100 g | 24 mL / 100 g | 11 mL / 100 g |
| Setting Expansion | 1.6 Percent | 0.5 % | 0.8 % | 0.25 % | 0.2 % |
| Ready For Burnout | Yes | 30 minutes | 45 minutes | 30 Minutes | 30 - 60 minutes |
| Hygroscopic Expansion | Not Available | Not Available | N / A | N / A | N / A |
| Thermal Expansion | 0.65 Percent | 650º C (1,200º F) - 1.25 % | 1 % | 700° C (1,300° F) - 0.60 % | 700 -- 1,000° C (1,300 -- 1,800° F) - 0.90 % |
| Metal or Ringless Technique | Both | Metal Only | Metal or Ringless | N / A | Metal or Ringless |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |