AURUNA® 215 Gold Iron Indium Electrolyte

Gold alloy electrolyte free of nickel and cobalt

AURUNA® 215 is a colour gold alloy electrolyte for decorative applications, preferably for parts coming into contact with the skin such as jewellery and watches. The essential advantage of the coatings is their freedom from nickel and cobalt, excluding skin allergies caused by these metals.

The weakly acidic gold electrolyte is easy to operate and suitable for rack and barrel, it works very colour-constant. Across a wide operating range, the coating colour (1N – 2N) is independent of pH-value and current density. By adding indium, a uniform colour is achieved.