Portadur P4 is a gold-reduced, palladium-free casting alloy with a golden yellow colour. Its high strength allows a wide range of indications and it can be veneered with the laboratory composite SR Nexco.
Indications*
- Inlays
- Onlays, 3/4 crowns, crowns
- Telescope crowns, conus crowns
- Bridges
- Wide-span bridges
- Cast posts / cores, bars, attachments
- Implant-supported superstructures
- Partial dentures
Technical Data
| Composition (%): | Au 68.5 | Ag 12.0 | Cu 12.0 | Pt 6.9 | Zn <1.0, Ir <1.0 |
| ISO | 22674:2016 |
| Type / Color | 4 / Rich Yellow |
| Density (g/cm³) | 15.6 |
| Melting Range (Solidus/Liquidus): | 920 - 970 °C |
| Elastic Modulus (GPa): | 103 |
| As Cast Softened Hardened | |
| Vickers Hardness: | 270 170 270 |
| Tensile Strength (MPa): | 850 560 810 |
| 0.2% Proof Stress (MPa): | 690 400 720 |
| Elongation (%): | 8 27 10 |