ROSE GOLD ELECTROLYTE
AURUNA® 503 is a neutral, cadmium-free gold-copper electrolyte for the deposition of bright red surfaces. It works without free cyanide. AURUNA® 503 is especially suited to decorative but also technical applications, such as sliprings. Special features of this electrolyte are its long lifetime and fast deposition speed. For low-carat gold-saving layers, it also offers good resistance to corrosion and abrasion. The gold-copper electrolyte can be used for rack and barrel plating and can achieve layers up to 5 μm in thickness.
Advantages
• Gold-saving coating (approx. 18ct)
• Long lifetime
• Fast deposition speed
• Cadmium-free
• Red gold-copper coatings
• Resistant to tarnishing and corrosion
• Maximum layer thickness approx. 5 μm
• Very hard (380 - 400 HV), abrasion-resistant
• Suitable for rack and barrel
Applications
• Accessories
• Jewelry
• Watches
• Bathroom fittings
• Lighting
• Spectacle frames
• Writing utensils
• Sliprings
• Yazı gereçleri
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Electrolyte type |
Neutral |
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Coating |
Gold-copper |
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Metal content |
6 (5 - 7) g/l Au |
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Purity |
75 wt.% Au |
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pH value |
7.5 (7.3 - 7.8) |
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Colour of deposit |
Rose gold |
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Operating temperature |
65 (60 - 70) °C |
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Brightness |
Bright |
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Current density range |
0.8 (0.6 - 1.2) A/dm² |
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Hardness of deposit |
380 - 400 HV |
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Plating speed |
Approx. 0.25 μm/min |
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Max. coating thickness |
Approx. 5 μm |
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Anode material |
Pt-Ti (type PLATINODE Pt/Ti) |
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Density of the coating |
Approx. 15 g/cm³ |
