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AURUNA® 311 Gold Cobalt Electrolyte

AURUNA® 311 Gold Cobalt Electrolyte

Electrolyte characteristics

Electrolyte type

Strongly acidic

Metal content

2 (1.0 - 2.5) rsp. 4 (3.5 - 4.5) g/l Au

pH value

0.6 (0.1 - 0.8)

Operating temperature

Room temperature up to max. 40 °C

Current density range

2 - 6 A/dm²

Plating speed

0.04 - 0.15 µm/min

Anode material

Pt-Ti, MMO (type PLATINODE® 177)

Coating characteristics

Coating

Gold-cobalt

Alloy composition

0.3 weight % Co 99.7 weight % Au

Colour of deposit

Deep yellow

Brightness

Bright

Hardness

165 HV (HV 0.015 (Vickers) approx. values)

Max. coating thickness

Approx. 10 µm

Density of the coating

Approx. 17.5 g/cm³