Dental Gypsum Products for Laboratory Model Making
LiiFoo supplies Type III, Type IV, and Type V dental gypsum products – the foundational materials for accurate dental models in every CAD/CAM workflow. Produced under strict quality control to meet ISO 6873 specifications.
Dental Gypsum Classifications
Type III Dental Stone – Standard dental stone for study models, preliminary work models, and diagnostic purposes.
Type IV Dental Stone (Die Stone) – High-strength, low-expansion stone for master models, working casts, and dies used in crown and bridge fabrication.
Type V Dental Stone – Ultra-high-strength, ultra-low-expansion stone for implant model work, precision attachments, and applications demanding maximum dimensional accuracy.
Technical Specifications
| Property | Type III Stone | Type IV Die Stone | Type V Stone |
|---|---|---|---|
| Compressive Strength (1hr) | greater than or equal to 20 MPa | greater than or equal to 35 MPa | greater than or equal to 45 MPa |
| Compressive Strength (24hr) | greater than or equal to 35 MPa | greater than or equal to 70 MPa | greater than or equal to 90 MPa |
| Setting Expansion | less than or equal to 0.20% | less than or equal to 0.15% | less than or equal to 0.10% |
| Water/Powder Ratio | 0.30-0.35 | 0.22-0.25 | 0.20-0.22 |
| ISO Standard | ISO 6873:2017 | ||