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 | Soldering Investment | Cristobalite Investment Material | PC 15 Phosphate Bonded Investment | PowerCast Phosphate Investment | ResinVest |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | Multi-purpose SOLDERING INVESTMENT isideal for soldering all types of dental alloys, including chrome-cobalt. Its fine texture mixes readily with | The principal ingredient, CRISTOBALITE, gives high thermal expansion, even at comparatively low temperatures. It is possible to use the same creamy | PC15 is a fine grained phosphate bonded investment for pressable ceramics. Its creamy consistency pours easily when investing and produces smooth | A carbon-free, fine-grain phosphate bonded investment for casting crown and bridge and ceramic alloys. This versatile all-purpose investment has been | Designed for burning out printed or milled resin patterns for crowns, bridges, or frameworks, ResinVest is a fiber-reinforced material that resists |
| Quantity | 2 kg (4.5 pounds) Package
11 kg (25 pounds) Carton | 144 - 50 g Package | 25 - 100 g Package
100 - 100 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 | 100 g Package; 55 lbs. Carton |
| Compressive Strength | Wet - 1,200 psi (9 MPa) | Wet - 700 psi (5 MPa) | Wet - 500 psi (3.4 MPa) | Wet - 700 psi (5 MPa) | 1,350 psi (9.2 MPa) |
| Working Time | 2 - 3 minutes | 3 minutes | 7 - 9 minutes | 8 - 9 minutes | 6 to 8 Minutes |
| Set Time | 15 minutes | 16 minutes | Not Available | Not Available | 30 Minutes Minimum |
| Material Type | Gypsum Bonded Investment | Gypsum Bonded Investment | Fine Grain Phosphate Bonded Investment | Carbon-free, Fine-grain Phosphate-bonded Investment | Phosphate Investment |
| Indication For Use | Low and High Fusing Precious Metals | Low Fusing Crown and Bridge Alloys | Pressable Ceramics | Casting Crown and Bridge and Ceramic Alloys | Burning out milled or printed resin patterns |
| Liquid / Powder Ratio | 24 mL / 100 g | 30 mL / 100 g | 27 mL / 100 g | 23 mL / 100 g | 22 ml/100 g |
| Setting Expansion | 0.25 % | 0.5 % | 1 % | 0.8 % | 1.6 Percent |
| Ready For Burnout | 30 Minutes | 30 minutes | 15 minutes | 45 minutes | Yes |
| Hygroscopic Expansion | N / A | Not Available | N / A | N / A | Not Available |
| Thermal Expansion | 700° C (1,300° F) - 0.60 % | 650º C (1,200º F) - 1.25 % | 0.7 % | 1 % | 0.65 Percent |
| Metal or Ringless Technique | N / A | Metal Only | Metal or Ringless | Metal or Ringless | Both |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |