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Business unit / dept.: Metal Deposition Solutions

AURUNA® 500 LC Rose Gold Electrolyte

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.

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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

Downloads

  • Produktblatt_AURUNA_500_LC_EN.pdf
    Download

Your contact person

Markus Legeler

Markus Legeler

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