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 | Jade Stone Gypsum | FlowStone Gypsum | Hard Rock Gypsum | Lean Rock XL5 | ResinRock Gypsum |
| Citations | | | | | |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | JADE STONE stacks well after mixing yet flows readily under the least vibration. Popular for its smooth jade-like surface, high strength and low | FLOWSTONE produces accurate, bubble-free bases without vibration, making it ideal for use with base formers. Its extended working time allows the | The material is compatible with all types of impression materials. Its high expansion makes it especially suited for polyvinyl or polyether impression | Lean Rock XL5, ISO Type 5 die stone, offers increased expansion to compensate for shrinkage of vinyl polysiloxane and other rubber-based impression | ResinRock is a resin fortified die stone produces models of the highest quality. The unique blend of synthetic resin and alpha gypsum results in |
| Quantity | 11 kg (25 pounds)
25 kg (55 pounds)
120 Packages (70 g) | 22 kg (50 pounds) | 11 kg (25 pounds)
25 kg (55 pounds)
120 Packages (70 g) | 11 kg (25 pounds)
25 kb (55 pounds) | 5 kg (11 pounds)
25 kg (55 pounds)
25 Packages (70 g) |
| Compressive Strength | 14,000 psi (97 MPa) | 12,000 psi (83 MPa) | 15,000 psi (104 MPa) | 7,200 psi (49.64 MPa) | 11,000 psi (76 MPa) |
| Working Time | 5 - 7 minutes | 6 - 9 minutes | 6 - 8 minutes | 4 - 5 minutes | 5 - 7 minutes |
| Set Time | 10 minutes | 12 minutes | 15 minutes | 5 - 7 minutes | 10 minutes |
| Indication For Use | High Strength Die Stone | Models | Crown & Bridge | Small Batch Processing | Crown & Bridge
Implant
Complex Restorative Cases |
| Liquid / Powder Ratio | 22 mL / 100 g | 22 - 24 mL / 100 g | 21 mL / 100 g | 21 mL / 100 g | 20 mL / 100 g |
| Setting Expansion | 0.18% | 0.08 % | 0.28% | 0.20% | 0.08 % |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |