AURUNA® 5300
Gold Iron Electrolyte

Nickel-free, fast-depositing weakly acidic electrolyte


AURUNA® 5300 is a hard gold electrolyte free of nickel and cobalt with high plating speed for decorative and technical applications. The weakly acidic electrolyte for depositing yellow, bright hard gold coatings exhibits good corrosion and abrasion resistance. Its contact resistance is low and long-term stable. Metallic contaminants can be easily precipitated.

The hard gold electrolyte can be used for rack and barrel operation. It is especially suitable for jewellery since the coatings are free of nickel and cobalt.

Your advantages:

  • Weakly acidic hard gold electrolyte
  • Non-allergenic since free of nickel and cobalt
  • High plating speed
  • Yellow, bright coatings with approx. 0.3 % iron
  • For decorative and technical applications
  • Low, stable contact resistance
  • Good corrosion and abrasion resistance
  • The coatings are RoHS compliant
  • Suitable for rack and barrel
Gold ring coated with AURUNA<sup>®</sup> 5300.

Gold ring coated with AURUNA® 5300.


  • Accessories
  • Jewellery
  • Writing implements
  • Bathroom fittings
  • Lighting
  • Connectors/contacts
  • Printed circuit boards