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 | Novocast Investment Material | Hi Temp Carbon-Free Investment | PowerCast Phosphate Investment | Soldering Investment | X-20 Chrome Phosphate Investment |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | NOVOCAST is an advanced inlay investment that provides increased accuracy for casting conventional gold alloys at a mold temperature of 650 degrees C | A special investment for non-precious and semi-precious alloys. HI-TEMP contains no carbon. Non-precious metal alloys require an investment specially | 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 | 9 kg (20 pounds) Carton
24 - 50 g Package
24 - 75 g Package
144 - 50 g Package
144 - 75 g Package | 144 - 90 g Package
144 - 60 g Package
6 Pack - 340 mL Bottles
6 Pack - 1 L Bottles
340 mL Bottle
1 L Bottle | 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 | Wet - 950 psi (7 MPa) | Wet - 1,500 psi (10 MPa) | Wet - 700 psi (5 MPa) | Wet - 1,200 psi (9 MPa) | Wet - 2,500 psi (17 MPa) |
| Working Time | 3 minutes | 7 - 8 minutes | 8 - 9 minutes | 2 - 3 minutes | 4 - 5 minutes |
| Set Time | 15 minutes | Not Available | Not Available | 15 minutes | Not Available |
| Material Type | Gypsum Bonded Investment | Carbon-Free Phosphate Bonded | Carbon-free, Fine-grain Phosphate-bonded Investment | Gypsum Bonded Investment | Phosphate Bonded |
| Indication For Use | Low Fusing Crown and Bridge Alloys | High Fusing Alloys | Casting Crown and Bridge and Ceramic Alloys | Low and High Fusing Precious Metals | Casting Partials with Chromium Dental Alloys |
| Liquid / Powder Ratio | 34 mL / 100 g | 16 mL / 100 g | 23 mL / 100 g | 24 mL / 100 g | 11 mL / 100 g |
| Setting Expansion | 0.45 % | 0.7 % | 0.8 % | 0.25 % | 0.2 % |
| Ready For Burnout | 30 minutes | 60 minutes | 45 minutes | 30 Minutes | 30 - 60 minutes |
| Hygroscopic Expansion | N / A | N / A | N / A | N / A | N / A |
| Thermal Expansion | 650° C - 1.20 % | 1.2 % | 1 % | 700° C (1,300° F) - 0.60 % | 700 -- 1,000° C (1,300 -- 1,800° F) - 0.90 % |
| Metal or Ringless Technique | Metal Only | Metal or Ringless | Metal or Ringless | N / A | Metal or Ringless |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |