Gold-saving, red, approx. 18 carat gold- copper coatings. Resistant to tarnishing and corrosion. High hardness, abrasion- resistant. The neutral electrolyte works without free cyanide. Also for technical applications. Can be operated with either 5 or 10 g/l gold. \r\n \r\n \r\n \r\n Metal content in the deposit wt.% \r\n Alloy compo- nents \r\n Hardness of deposit HV 0.025 (Vickers) approx. values \r\n Colour of deposit \r\n Max. coating thickness μm \r\n Metal content g/l \r\n pH- value \r\n Current density A/dm2 \r\n Plating speed μm/min approx. values \r\n Tempe- rature °C \r\n \r\n \r\n 75 \r\n Cu \r\n 380-400 \r\n Red \r\n 10 \r\n 5 (4.5-5.5) or 10 (9-11) \r\n 5 g/l Au: 7.4 (7.2-7.6) 10 g/l Au: 7.2 (7.0-7.3) \r\n 5 g/l Au: 0.4 (0.2-0.8) 10 g/l Au: 0.75 (0.3-1.0) \r\n 5 g/l Au: 0.14 10
