AURUNA® 500 LC Rose Gold Electrolyte
Rose gold layers for fine jewelry
AURUNA® 500 LC is a neutral electrolyte for depositing red 18 carat gold-copper coatings. The electrolyte works with low gold content, has a stable pH-value and works without free cyanide.
The alloy is mainly suitable for decorative applications such as jewelry and accessories. The layers are very hard and abrasion-resistant. As low-carat gold-saving coatings, they additionally exhibit a very good resistance to tarnishing and corrosion.
Electrolyte characteristics
Electrolyte type neutral
Metal content 2 (1.5 - 3) g/l Au, 1.5 ( 1.3 - 2) g/l Cu
pH value 7.0 (6.8 - 7.2)
Operating temperature 57 (55 - 60) °C
Current density range 0.4 (0.3 - 1.0) A/dm²
Plating speed: approx. 0.12 μm/min at 0.4 A/dm²
Coating characteristics
Coating Gold copper
Alloy composition approx. 75 wt.% Au, approx. 25 wt.% Cu
Colour of deposit Rose
Hardness of deposit approx. 380 - 400 HV
Max. coating thickness 1.5 μm
Density of the coating approx. 15 g/cm³
Advantages
Rose gold-copper layers
Gold-saving coatings (approx. 18 kt)
Tarnish and corrosion resistant
Low gold content
No free cyanide
Applications
Accessories
Jewelry
Watches
Bathroom fittings
Lighting
Spectacle frames
Writing utensils
