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Black Ruthenium Bath, Prod-ID: NC500

Black ruthenium bath NC500

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 catalog

Advantages

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

Applications

Bathroom fittings

Spectacle frames

Jewellery & watches

Writing implements

Car interiors

Technical Specifications

Electrolyte characteristics

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 Characteristics

Coating Black Ruthenium
Alloy composition 99.9 wt. % Ru
Color of deposit Gray to anthracite (black)
Brightness Bright