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 | PowerCast Phosphate Investment | V.H.T. Refractory 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 | A carbon-free, fine-grain phosphate bonded investment for casting crown and bridge and ceramic alloys. This versatile all-purpose investment has been | One of the most useful and efficient laboratory materials available today, V.H.T. is an extremely fine-grained phosphate investment with an ample |
| 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 | 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 | 24 - 60 g Package
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) | Wet - 700 psi (5 MPa) | Wet - 2,500 psi (17 MPa)
Dry - 4,800 psi (34 MPa) |
| Working Time | 2 - 3 minutes | 3 minutes | 6 - 8 minutes | 8 - 9 minutes | 4 - 5 minutes |
| Set Time | 15 minutes | 16 minutes | Not Available | Not Available | Not Available |
| Material Type | Gypsum Bonded Investment | Gypsum Bonded Investment | Phosphate Bonded Investment | Carbon-free, Fine-grain Phosphate-bonded Investment | Refractory Die Material |
| Indication For Use | Low and High Fusing Precious Metals | Low Fusing Crown and Bridge Alloys | Universal Investment for All Alloys and Pressable Ceramics | Casting Crown and Bridge and Ceramic Alloys | Direct Firing Ceramics |
| Liquid / Powder Ratio | 24 mL / 100 g | 30 mL / 100 g | 22 mL / 100 g | 23 mL / 100 g | 19 mL / 100 g |
| Setting Expansion | 0.25 % | 0.5 % | 1.6 % | 0.8 % | 0.3 % |
| Ready For Burnout | 30 Minutes | 30 minutes | 15 minutes | 45 minutes | Not Available |
| Hygroscopic Expansion | N / A | Not Available | N / A | N / A | N / A |
| Thermal Expansion | 700° C (1,300° F) - 0.60 % | 650º C (1,200º F) - 1.25 % | 0.65 % | 1 % | 500° C, 2nd Firing - 0.8 % |
| Metal or Ringless Technique | N / A | Metal Only | Metal or Ringless | Metal or Ringless | N / A |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |