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 | Ceramigold Investment with Carbon | Formula 1 Universal Investment | Novocast Investment Material | Polyvest Refractory Die Material | X-20 Chrome Phosphate Investment |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | This phosphate investment contains carbon for bright, gold-colored castings. Expansion can be controlled to fit your needs -- yet technic is easy to | This high-performance, universal investment works equally well for all alloys and pressable ceramics. Its wide expansion range allows the technician | NOVOCAST is an advanced inlay investment that provides increased accuracy for casting conventional gold alloys at a mold temperature of 650 degrees C | POLYVEST Refractory Die Material is formulated with a coefficient of thermal expansion to closely match today's newer porcelains. With its controlled | 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 | 9 kg (20 pounds) Carton
24 - 50 g Package
24 - 75 g Package
144 - 50 g Package
144 - 75 g Package | 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 - 950 psi (7 MPa) | Wet - 6,000 psi (42 MPa)
Dry - 6,500 psi (48 MPa) | Wet - 2,500 psi (17 MPa) |
| Working Time | 6 - 7 minutes | 6 - 8 minutes | 3 minutes | 2 minutes | 4 - 5 minutes |
| Set Time | Not Available | Not Available | 15 minutes | Not Available | Not Available |
| Material Type | Phosphate Bonded Investment | Phosphate Bonded Investment | Gypsum Bonded Investment | Refractory Die Material | Phosphate Bonded |
| Indication For Use | Crown and Bridge and Ceramic Gold Alloys | Universal Investment for All Alloys and Pressable Ceramics | Low Fusing Crown and Bridge Alloys | Refractory Investment - Direct Firing Ceramics | Casting Partials with Chromium Dental Alloys |
| Liquid / Powder Ratio | 16 mL /100 g | 22 mL / 100 g | 34 mL / 100 g | 22 mL / 100 g | 11 mL / 100 g |
| Setting Expansion | 0.7 % | 1.6 % | 0.45 % | 0.8 % | 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 % | 650° C - 1.20 % | 500° C, 2nd firing - 0.65% | 700 -- 1,000° C (1,300 -- 1,800° F) - 0.90 % |
| Metal or Ringless Technique | Metal or Ringless | Metal or Ringless | Metal Only | N / A | Metal or Ringless |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |