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 | Cera-Fina Carbon-Free Fine Grained Investment | PC 15 Phosphate Bonded Investment | V.H.T. Refractory Investment | 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 | CERA-FINA is a carbon-free phosphate investment developed for professionals who demand a more finely grained investment. It is designed for use with | PC15 is a fine grained phosphate bonded investment for pressable ceramics. Its creamy consistency pours easily when investing and produces smooth | One of the most useful and efficient laboratory materials available today, V.H.T. is an extremely fine-grained phosphate investment with an ample | 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 | 9 kg (20 pounds) Carton
24 - 90 g Package
144 - 60 g Package
144 - 90 g Package
6 Pack - 340 mL Bottles
6 Pack - 1 L Bottles
340 mL Bottle
1 L Bottle | 25 - 100 g Package
100 - 100 g Package
6 Pack - 340 mL Bottles
6 Pack - 1 L Bottles
340 mL Bottle
1 L Bottle | 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 - 700 psi (5 MPa) | Wet - 600 psi (4 MPa) | Wet - 500 psi (3.4 MPa) | Wet - 2,500 psi (17 MPa)
Dry - 4,800 psi (34 MPa) | Wet - 2,500 psi (17 MPa) |
| Working Time | 8 - 9 minutes | 8 - 10 minutes | 7 - 9 minutes | 4 - 5 minutes | 4 - 5 minutes |
| Material Type | Carbon-free, Fine-grain Phosphate-bonded Investment | Carbon-free Phosphate Bonded Investment | Fine Grain Phosphate Bonded Investment | Refractory Die Material | Phosphate Bonded |
| Indication For Use | Casting Crown and Bridge and Ceramic Alloys | High Fusing Alloys | Pressable Ceramics | Direct Firing Ceramics | Casting Partials with Chromium Dental Alloys |
| Liquid / Powder Ratio | 23 mL / 100 g | 24 mL / 100 g | 27 mL / 100 g | 19 mL / 100 g | 11 mL / 100 g |
| Setting Expansion | 0.8 % | 0.25 % | 1 % | 0.3 % | 0.2 % |
| Ready For Burnout | 45 minutes | 90 minutes | 15 minutes | Not Available | 30 - 60 minutes |
| Hygroscopic Expansion | N / A | N / A | N / A | N / A | N / A |
| Thermal Expansion | 1 % | 1.3 % | 0.7 % | 500° C, 2nd Firing - 0.8 % | 700 -- 1,000° C (1,300 -- 1,800° F) - 0.90 % |
| Metal or Ringless Technique | Metal or Ringless | Metal or Ringless | Metal or Ringless | N / A | Metal or Ringless |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |