Gold-saving, red, approx. 18 carat gold- copper coatings. Resistant to tarnishing and corrosion. High hardness, abrasion- resistant. The neutral electrolyte works without free cyanide. Also for technical applications.
| Metal content in the deposit wt.% | Alloy compo- nents | Hardness of deposit HV 0.025 (Vickers) approx. values | Colour of deposit | Max. coating thickness μm |
Metal content g/l | pH- value | Current density A/dm2 |
Plating speed μm/min approx. values | Tempe- rature °C |
| 75 | Cu | 380-400 | Red | 10 | 4 (3.5-4.5) | 7.5 (7.2-8.0) | 0.5 (0.3-0.8) | 0.15 | 57 (55-60) |
