GOLD SILVER ELECTROLYTE
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.
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
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ELECTROLYTE CHARACTERISTICS |
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COATING CHARACTERISTICS |
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Electrolyte type |
Alkaline-cyanide |
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Coating |
Gold-silver |
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Metal content |
8 (7.5 - 8.5) g/l Au |
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Alloy composition |
75 wt. % Au |
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pH value |
> 11 |
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Colour of deposit |
Green-yellow |
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Operating temperature |
35 (30 - 40) °C |
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Brightness |
Bright |
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Current density range |
1.0 (0.2 - 1.8) A/dm² |
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Hardness of deposit |
115 HV |
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Plating speed |
Approx. 0.6 μm/min |
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Max. coating thickness |
> 10 μm |
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Anode material |
Stainless steel |
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Density of the coating |
Approx. 15.5 g/cm³ |
