Dental lab gypsum materials are used to create highly accurate model from a physical impression of a patient's teeth. The models are fabricated by pouring the gypsum material into the impression and allowing it to harden. There are a wide range of gypsums used in dentistry with different properties depending on how the models will be used. Some gypsums are ideal for use in sectioned models and dies, others are designed to be scanned for use in CAD/CAM dentistry, while other model materials are designed for use in vacuum-forming orthodontic appliances, mouth guards or other appliances. It is important to be sure your gypsum is properly set and be sure to properly label your models and dies so they stay with the correct case.
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| Company | Whip Mix Corporation | Whip Mix Corporation | Whip Mix Corporation | Whip Mix Corporation | Whip Mix Corporation |
| Item | Lean Rock XL5 | Bitestone | FlowStone Gypsum | Jade Stone Gypsum | Mounting Stone Gypsum |
| Citations | | | | | |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | Lean Rock XL5, ISO Type 5 die stone, offers increased expansion to compensate for shrinkage of vinyl polysiloxane and other rubber-based impression | An extremely fast setting stone for use in mounting casts, and locking gnathological instruments into position. Free flow is held to a minimum in this | FLOWSTONE produces accurate, bubble-free bases without vibration, making it ideal for use with base formers. Its extended working time allows the | JADE STONE stacks well after mixing yet flows readily under the least vibration. Popular for its smooth jade-like surface, high strength and low | A very hard, fast setting gypsum material formulated expressly for mounting casts to articulators. Its very low setting expansion prevents |
| Quantity | 11 kg (25 pounds)
25 kb (55 pounds) | 11 kg (25 pounds)
22 kg (50 pounds) | 22 kg (50 pounds) | 11 kg (25 pounds)
25 kg (55 pounds)
120 Packages (70 g) | 11 kg (25 pounds)
22 kg (50 pounds)
100 Packages (100 g) |
| Compressive Strength | 7,200 psi (49.64 MPa) | 7,000 psi (49 MPa) | 12,000 psi (83 MPa) | 14,000 psi (97 MPa) | 8,500 psi (59 MPa) |
| Working Time | 4 - 5 minutes | 10 - 60 seconds | 6 - 9 minutes | 5 - 7 minutes | 2 - 3 minutes |
| Set Time | 5 - 7 minutes | 1 - 3 minutes | 12 minutes | 10 minutes | 5 minutes |
| Indication For Use | Small Batch Processing | Mounting Casts
Locking Gnathological Instruments | Models | High Strength Die Stone | Mounting Casts To Articulators |
| Liquid / Powder Ratio | 21 mL / 100 g | 29 mL / 100 g | 22 - 24 mL / 100 g | 22 mL / 100 g | 26 mL / 100 g |
| Setting Expansion | 0.20% | 0.15 % | 0.08 % | 0.18% | 0.08% |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |