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AURUNA® 8100 Gold Cobalt Electrolyte

    Brand: UMICORE
    Origin:

    Germany
    028 3838 0482

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    High-speed electrolyte for hard gold coatings

    AURUNA® 8100 is used for depositing hard gold coatings in special high-speed equipment. The weakly acidic high-speed electrolyte has a wide operating range with easy bath maintenance and extremely high plating speed.

    AURUNA® 8100 was specifically developed for the automatic high-speed gold-plating in equipment for selective plating and continuously working reel-to-reel lines. Due to vigorous electrolyte agitation (flow, spray), it allows the working at high current densities with stable long-time behaviour. It can be also operated as a gold strike electrolyte.

    The deposits are solderable, low in pores, ultra-bright, hard and abrasion-resistant. They have a constantly low contact resistance. Therefore the electrolyte is excellently suitable for the gold-plating of electronic components such as connectors, contacts and edge connectors on printed circuit boards.

    The optional use of the AURUNA® Inhibitor 2 offers the possibility of a reduced gold consumption of up to 15%. The inhibitor allows sharp borderlines - this reduces the size of the run-off area. Of course, the layer properties remain unaffected. The inhibitor can be removed without any residue after the plating by cleaning with activated carbon.

    Electrolyte characteristics

    Electrolyte type

    Weakly acidic

    Metal content

    12 (2 - 30) g/l Au

    pH value

    4.2 - 4.6

    Operating temperature

    55 (45 - 65) °C

    Current density range

    2 - 80 A/dm², 80 A/dm² in JetLab

    Plating speed

    0.3 - 11 μm/min

    Anode material

    Pt-Ti (type PLATINODE® Pt/Ti)

    Coating characteristics

    Coating

    Gold-cobalt

    Alloy composition

    Approx. 99.7 wt. % Au 0.1 - 0.4 wt. % Co

    Colour of deposit

    Deep yellow

    Brightness

    Ultra-bright

    Hardness

    120 - 200 HV

    Max. coating thickness

    10 μm

    Density of the coating

    Approx. 17 g/cm³


    Advantages

    • Weakly acidic high-speed electrolyte
    • Wide operating range
    • Extremely high plating speed
    • Low-pore, solderable, hard and abrasion-resistant coatings
    • For electrical contacts
    • Classification according to ASTM B-488-01 Type I-II, Code C-D
    • The coatings are RoHS compliant
    • For use in high-speed equipment
    • Gold savings of up to 15% by inhibitor usage

     

    Applications

    • Connectors
    • Electrical contacts
    • Edge connectors on printed circuit boards







    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.