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AURUNA® 311 For Technical Applications Gold Cobalt Electrolyte

AURUNA® 311 For Technical Applications Gold Cobalt Electrolyte

Electrolyte characteristics

Electrolyte type

Strongly acidic

Metal content

2 (1 - 10) g/l Au

pH value

0.6 (0.1 - 0.8)

Operating temperature

25 (20 - 40) °C

Current density range

2 - 6 A/dm²

Plating speed

0.08 μm/min at 2 g/l Au, 2 A/dm²

Anode material

Pt-Ti, MMO (type PLATINODE® 177 )

Coating characteristics

Coating

Gold-cobalt

Alloy composition

Approx. 99.7 weight % Au 0.3 weight % Co

Colour of deposit

Deep yellow

Brightness

Bright

Hardness

160 HV

Max. coating thickness

10 μm