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.
|  |  |  |  |  |
| Company | Whip Mix Corporation | Whip Mix Corporation | Whip Mix Corporation | Whip Mix Corporation | Whip Mix Corporation |
| Item | X-20 Chrome Phosphate Investment | Formula 1 Universal Investment | Polyvest Refractory Die Material | PowerCast Phosphate Investment | Soldering Investment |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | A vastly improved casting investment for making chrome partial denture frameworks. For casting any chrome partial alloy. Refractory Cast is hard, | This high-performance, universal investment works equally well for all alloys and pressable ceramics. Its wide expansion range allows the technician | POLYVEST Refractory Die Material is formulated with a coefficient of thermal expansion to closely match today's newer porcelains. With its controlled | 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 |
| Quantity | 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 | 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 | 24 - 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 |
| Compressive Strength | Wet - 2,500 psi (17 MPa) | Wet - 1.350 psi (9.2 MPa) | Wet - 6,000 psi (42 MPa)
Dry - 6,500 psi (48 MPa) | Wet - 700 psi (5 MPa) | Wet - 1,200 psi (9 MPa) |
| Working Time | 4 - 5 minutes | 6 - 8 minutes | 2 minutes | 8 - 9 minutes | 2 - 3 minutes |
| Set Time | Not Available | Not Available | Not Available | Not Available | 15 minutes |
| Material Type | Phosphate Bonded | Phosphate Bonded Investment | Refractory Die Material | Carbon-free, Fine-grain Phosphate-bonded Investment | Gypsum Bonded Investment |
| Indication For Use | Casting Partials with Chromium Dental Alloys | Universal Investment for All Alloys and Pressable Ceramics | Refractory Investment - Direct Firing Ceramics | Casting Crown and Bridge and Ceramic Alloys | Low and High Fusing Precious Metals |
| Liquid / Powder Ratio | 11 mL / 100 g | 22 mL / 100 g | 22 mL / 100 g | 23 mL / 100 g | 24 mL / 100 g |
| Setting Expansion | 0.2 % | 1.6 % | 0.8 % | 0.8 % | 0.25 % |
| Ready For Burnout | 30 - 60 minutes | 15 minutes | Not Available | 45 minutes | 30 Minutes |
| Hygroscopic Expansion | N / A | N / A | N / A | N / A | N / A |
| Thermal Expansion | 700 -- 1,000° C (1,300 -- 1,800° F) - 0.90 % | 0.65 % | 500° C, 2nd firing - 0.65% | 1 % | 700° C (1,300° F) - 0.60 % |
| Metal or Ringless Technique | Metal or Ringless | Metal or Ringless | N / A | Metal or Ringless | N / A |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |