Acidic electrolyte for decorative black coatings up to 0.5 μm layer thickness. Good colour constancy, simple bath maintenance, easy-to-use batch type. 

Metal content in the deposit wt.%  Alloy compo- nents  Colour of deposit  Max. coating  thickness
μm 
Metal  content g/l pH- value  Current density A/dm2 
Plating speed μm/min approx. values  Anode Material
>95  Cu  Anthracite (black)  0.5 5 1.4
(1.0-1.5) 
1.0 (0.5-2.0)  0.08  Pt/Ti
(2.5 μm Pt),
Ir MMO PLATINODE® 177