Portadur P4

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

Advantages

Golden yellow colour
High strength
Wide range of indications
Veneering with laboratory composites (e.g. SR Nexco)
Certified biocompatibility

Processing Data

Investment Material:	Phosphate-bonded / Gypsum-bonded
Preheating / Burn- out Temperature:	700 °C
Crucible	Carbon crucible / Ceramic crucible
Casting Temperature:	1070 °C
Recommended Lab Composite:	SR Nexco
Laser Welding Wire:	Portadur P4

*See TYPE CLASSIFICATION DUE TO PHYSICAL PROPERTIES