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 | V.H.T. Refractory Investment | Ceramigold Investment with Carbon | Cristobalite Investment Material | FastFire 15 Phosphate Investment | Formula 1 Universal Investment |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | One of the most useful and efficient laboratory materials available today, V.H.T. is an extremely fine-grained phosphate investment with an ample | This phosphate investment contains carbon for bright, gold-colored castings. Expansion can be controlled to fit your needs -- yet technic is easy to | The principal ingredient, CRISTOBALITE, gives high thermal expansion, even at comparatively low temperatures. It is possible to use the same creamy | FASTFIRE 15 is a fine grain phosphate investment which requires only a 15 minute benchset before placing molds into a hot oven for rapid burnout. It | This high-performance, universal investment works equally well for all alloys and pressable ceramics. Its wide expansion range allows the technician |
| Quantity | 24 - 60 g Package
6 Pack - 340 mL Bottles
6 Pack - 1 L 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 | 144 - 50 g Package | 100 - 90 g Package
150 - 60 g Package
25 - 90 g Package
25 - 60 g Package
340 mL Bottle
1 L Bottle
6 Pack - 340 mL Bottles
6 Pack - 1 L Bottles
9 kg (2 pounds) Carton | 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 |
| Compressive Strength | Wet - 2,500 psi (17 MPa)
Dry - 4,800 psi (34 MPa) | Wet - 1,500 psi (10 MPa) | Wet - 700 psi (5 MPa) | Wet - 500 psi (3.4 MPa) | Wet - 1.350 psi (9.2 MPa) |
| Working Time | 4 - 5 minutes | 6 - 7 minutes | 3 minutes | 7 - 9 minutes | 6 - 8 minutes |
| Set Time | Not Available | Not Available | 16 minutes | Not Available | Not Available |
| Material Type | Refractory Die Material | Phosphate Bonded Investment | Gypsum Bonded Investment | Fine Grain Phosphate | Phosphate Bonded Investment |
| Indication For Use | Direct Firing Ceramics | Crown and Bridge and Ceramic Gold Alloys | Low Fusing Crown and Bridge Alloys | Universal Phosphate Investment for All Crown and Bridge Alloys | Universal Investment for All Alloys and Pressable Ceramics |
| Liquid / Powder Ratio | 19 mL / 100 g | 16 mL /100 g | 30 mL / 100 g | 27 mL / 100 g | 22 mL / 100 g |
| Setting Expansion | 0.3 % | 0.7 % | 0.5 % | 1 % | 1.6 % |
| Ready For Burnout | Not Available | 60 minutes | 30 minutes | 15 minutes | 15 minutes |
| Hygroscopic Expansion | N / A | N / A | Not Available | N / A | N / A |
| Thermal Expansion | 500° C, 2nd Firing - 0.8 % | 1.2 % | 650º C (1,200º F) - 1.25 % | 1.0 % | 0.65 % |
| Metal or Ringless Technique | N / A | Metal or Ringless | Metal Only | Metal or Ringless | Metal or Ringless |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |