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NC500 Black is the perfect final finish for dark to black surfaces for decorative applications. The black ruthenium electrolyte is strongly acidic and has a long lifetime. It is easy to operate and primarily used for rack plating.
When plating non-precious metals it is recommended to use a pre-gold layer or a pre-palladium layer. NC500 Black is suitable for many decorative applications, for instance in the jewellery, bathroom fittings, spectacle frame and writing utensils industries.
Ruthenium content: 5 g Ru/250 ml
Catalogue
▢For perfect decorative dark to black final finishes
▢Degree of blackening adjustable
▢Good colour constancy
▢Strongly acidic electrolyte with long lifetime
▢Simple bath maintenance
▢Good to very good abrasion resistance
▢Suitable for rack and barrel
▢Bathroom fittings
▢Spectacle frames
▢Jewellery & watches
▢Writing implements
▢Car interiors
| Electrolyte type | Strongly acidic |
|---|---|
| Metal content | 5 (2 -10) g/L Ru |
| pH value | 1.2 (0.8 - 1.3) |
| Operating temperature | 65 (60 - 70) °C |
| Current density range | 1.5 A/dm2 |
| Plating speed | 0.12 μm/min |
| Anode material | MMO (RuO2-TiO2) or Pt-Ti |
| Coating | Black Ruthenium |
|---|---|
| Alloy composition | 99.9 wt. % Ru |
| Color of deposit | Gray to anthracite (black) |
| Brightness | Bright |