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AURUNA® 570 Gold Silver Electrolyte

AURUNA® 570 Gold Silver Electrolyte

Alkaline-cyanide gold alloy electrolyte – gold-saving

AURUNA® 570 is an alkaline-cyanide alloy electrolyte for depositing green-yellow gold coatings. The gold-silver alloy has a fineness of approx. 18 carats. The coatings are gold-saving, they are bright even as thick layers. For thin layers, a variant with a low gold content is available (AURUNA® 570 LC).

The long-term stable AURUNA® 570 electrolyte is easy to operate and suitable for rack and barrel. It is used for decorative applications.

Electrolyte characteristics

Electrolyte type

Alkaline-cyanide

Metal content

8 (7.5 - 8.5) g/l Au 3 (2.5 - 3.5) g/l Ag

pH value

> 11

Operating temperature

35 (30 - 40) °C

Current density range

1.0 (0.2 - 1.8) A/dm²

Plating speed

Approx. 0.6 μm/min at 1.0 A/dm²

Anode material

Stainless steel

Coating characteristics

Coating

Gold-silver

Alloy composition

75 wt. % Au 25 wt. % Ag

Colour of deposit

Green-yellow

Brightness

Bright

Hardness

115 HV

Max. coating thickness

> 10 μm

Density of the coating

Approx. 15.5 g/cm³

Advantages

  • Gold-saving 18 carat layers
  • Alkaline-cyanide gold alloy electrolyte
  • Free of cadmium
  • For decorative applications
  • Bright even as thick layers
  • Easy bath maintenance
  • The coatings are RoHS compliant
  • Suitable for rack and barrel

Applications

  • Jewellery
  • Watches
  • Spectacle frames
  • Writing implements
  • Lighting
  • Household articles
  • Cutlery
  • Accessories

Downloads

  • Produktblatt-auruna-570-en-screen-20190416.pdf

Your contact person

Markus Legeler

Markus Legeler

Manager Sales International
T: +49 7171 607 204
F: +49 7171 607 316
Email

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