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 | PowerCast Phosphate Investment | Ceramigold Investment with Carbon | Formula 1 Universal Investment | ResinVest | X-20 Chrome Phosphate Investment |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | A carbon-free, fine-grain phosphate bonded investment for casting crown and bridge and ceramic alloys. This versatile all-purpose investment has been | 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 | Designed for burning out printed or milled resin patterns for crowns, bridges, or frameworks, ResinVest is a fiber-reinforced material that resists | 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
150 - 60 g Package
100 - 90 g Package
6 Pack - 340 mL Bottles
6 Pack - 1L Bottles
340 mL Bottle
1 L Bottle | 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 | 100 g Package; 55 lbs. 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 - 700 psi (5 MPa) | Wet - 1,500 psi (10 MPa) | Wet - 1.350 psi (9.2 MPa) | 1,350 psi (9.2 MPa) | Wet - 2,500 psi (17 MPa) |
| Working Time | 8 - 9 minutes | 6 - 7 minutes | 6 - 8 minutes | 6 to 8 Minutes | 4 - 5 minutes |
| Set Time | Not Available | Not Available | Not Available | 30 Minutes Minimum | Not Available |
| Material Type | Carbon-free, Fine-grain Phosphate-bonded Investment | Phosphate Bonded Investment | Phosphate Bonded Investment | Phosphate Investment | Phosphate Bonded |
| Indication For Use | Casting Crown and Bridge and Ceramic Alloys | Crown and Bridge and Ceramic Gold Alloys | Universal Investment for All Alloys and Pressable Ceramics | Burning out milled or printed resin patterns | Casting Partials with Chromium Dental Alloys |
| Liquid / Powder Ratio | 23 mL / 100 g | 16 mL /100 g | 22 mL / 100 g | 22 ml/100 g | 11 mL / 100 g |
| Setting Expansion | 0.8 % | 0.7 % | 1.6 % | 1.6 Percent | 0.2 % |
| Ready For Burnout | 45 minutes | 60 minutes | 15 minutes | Yes | 30 - 60 minutes |
| Hygroscopic Expansion | N / A | N / A | N / A | Not Available | N / A |
| Thermal Expansion | 1 % | 1.2 % | 0.65 % | 0.65 Percent | 700 -- 1,000° C (1,300 -- 1,800° F) - 0.90 % |
| Metal or Ringless Technique | Metal or Ringless | Metal or Ringless | Metal or Ringless | Both | Metal or Ringless |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |