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 | Hi Temp Carbon-Free Investment | Formula 1 Universal Investment | Soldering Investment | V.H.T. Refractory Investment | X-20 Chrome Phosphate Investment |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | A special investment for non-precious and semi-precious alloys. HI-TEMP contains no carbon. Non-precious metal alloys require an investment specially | This high-performance, universal investment works equally well for all alloys and pressable ceramics. Its wide expansion range allows the technician | Multi-purpose SOLDERING INVESTMENT isideal for soldering all types of dental alloys, including chrome-cobalt. Its fine texture mixes readily with | One of the most useful and efficient laboratory materials available today, V.H.T. is an extremely fine-grained phosphate investment with an ample | A vastly improved casting investment for making chrome partial denture frameworks. For casting any chrome partial alloy. Refractory Cast is hard, |
| Quantity | 144 - 90 g Package
144 - 60 g Package
6 Pack - 340 mL Bottles
6 Pack - 1 L Bottles
340 mL Bottle
1 L Bottle | 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 | 2 kg (4.5 pounds) Package
11 kg (25 pounds) Carton | 24 - 60 g Package
6 Pack - 340 mL Bottles
6 Pack - 1 L Bottles
340 mL Bottle
1 L Bottle | 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 - 1,500 psi (10 MPa) | Wet - 1.350 psi (9.2 MPa) | Wet - 1,200 psi (9 MPa) | Wet - 2,500 psi (17 MPa)
Dry - 4,800 psi (34 MPa) | Wet - 2,500 psi (17 MPa) |
| Working Time | 7 - 8 minutes | 6 - 8 minutes | 2 - 3 minutes | 4 - 5 minutes | 4 - 5 minutes |
| Set Time | Not Available | Not Available | 15 minutes | Not Available | Not Available |
| Material Type | Carbon-Free Phosphate Bonded | Phosphate Bonded Investment | Gypsum Bonded Investment | Refractory Die Material | Phosphate Bonded |
| Indication For Use | High Fusing Alloys | Universal Investment for All Alloys and Pressable Ceramics | Low and High Fusing Precious Metals | Direct Firing Ceramics | Casting Partials with Chromium Dental Alloys |
| Liquid / Powder Ratio | 16 mL / 100 g | 22 mL / 100 g | 24 mL / 100 g | 19 mL / 100 g | 11 mL / 100 g |
| Setting Expansion | 0.7 % | 1.6 % | 0.25 % | 0.3 % | 0.2 % |
| Ready For Burnout | 60 minutes | 15 minutes | 30 Minutes | Not Available | 30 - 60 minutes |
| Hygroscopic Expansion | N / A | N / A | N / A | N / A | N / A |
| Thermal Expansion | 1.2 % | 0.65 % | 700° C (1,300° F) - 0.60 % | 500° C, 2nd Firing - 0.8 % | 700 -- 1,000° C (1,300 -- 1,800° F) - 0.90 % |
| Metal or Ringless Technique | Metal or Ringless | Metal or Ringless | N / A | N / A | Metal or Ringless |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |