RUTHUNA® 490 Black Ruthenium Electrolyte

    Thương hiệu: UMICORE
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    Dark ruthenium coatings without strike gold plating

    RUTHUNA® 490 Black is a neutral electrolyte for brightness retaining, dark grey to anthracite coatings. The black ruthenium electrolyte is easy to operate and has a good colour constancy.

    RUTHUNA® 490 Black permits the direct plating of copper, nickel, brass or bronze. This means that strike gold plating or strike plating with palladium or palladium alloys is not necessary, which leads to enormous precious metal cost savings.

    The black ruthenium electrolyte is suitable for decorative applications, above all in the clothing industry. It can be used for rack and barrel plating operations. Due to its high abrasion resistance, subsequent lacquering is not necessary, reducing the number of further process steps. Its positive features make themselves apparent even at a low ruthenium concentration of just 2 g/l.

    Electrolyte characteristics

    Electrolyte type

    Neutral

    Metal content

    2 (1.8 - 2.2) g/l Ru

    pH value

    7.0 (6.5 - 9.0) at 65 °C

    Operating temperature

    65 (60 - 70) °C

    Current density range

    1.0 (0.5 - 3.0) A/dm²

    Plating speed

    Approx. 0.02 μm/min at 1.0 A/dm²

    Anode material

    Pt/Ti or MMO (type PLATINODE® 167 or 177)

    Coating characteristics

    Coating

    Black ruthenium

    Purity

    99 wt. % Ru

    Colour of deposit

    Grey to anthracite (black)

    Brightness

    Bright


    Advantages

    • Neutral black ruthenium electrolyte
    • Simple bath maintenance
    • Dark grey to anthracite coatings
    • For decorative applications
    • High abrasion resistance
    • No lacquer finish is needed
    • Good colour constancy
    • Direct deposition on bronze or nickel possible
    • No intermediate layers of expensive palladium or gold necessary
    • Enormous precious metal cost savings
    • Suitable for rack and barrel


    Applications

    • Accessories in the clothing industry
    • Baby clothing
    • Car interiors









    Umicore is a global materials technology and recycling group, with about 10,000 employees and a turnover of € 10.4 billion in 2015. Umicore generates the majority of its revenues and dedicates most of its R&D efforts to clean technologies, such as emission control catalysts, materials for rechargeable batteries and recycling. Umicore’s overriding goal of sustainable value creation is based on an ambition to develop, produce and recycle materials in a way that fulfils its mission: materials for a better life.

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    Umicore is a global materials technology and recycling group, with about 10,000 employees and a turnover of € 10.4 billion in 2015. Umicore generates the majority of its revenues and dedicates most of its R&D efforts to clean technologies, such as emission control catalysts, materials for rechargeable batteries and recycling. Umicore’s overriding goal of sustainable value creation is based on an ambition to develop, produce and recycle materials in a way that fulfils its mission: materials for a better life.