For deposition of fine silver layers
ARGUNA® 3230 is an alkaline, cyanide-free silver electrolyte for the deposition of technically functional silver layers. The layers are also suitable for decorative applications.
As the electrolyte does not contain any toxic cyanide compounds, it is therefore easier to use under the increasing environmental and safety requirements. Especially for the medical technology cyanide-free systems are often required.
The deposited layers are excellently suited for soldering and wire bonding applications as well as for electrical contacts e.g. in power electronics or high current technology.
ARGUNA® 3230 is ideal for rack and barrel applications. Copper materials can be coated directly, without pre-silver.
Electrolyte characteristics
Electrolyte type
alkaline, cyanide free
Metal content
20 (18 - 22) g/l
pH value
9.5 (9.2 - 9.8)
Operating temperature
50 (45 - 55) °C
Current density range
0.5 - 1.5 A/dm²
Plating speed
1 μm in 1.5 min at 1.0 A/dm²
Coating characteristics
Coating
Fine silver
Purity
>99 wt.% Ag
Colour of deposit
white
Hardness of deposit
90 - 100 HV in condition as deposited
Density of the coating
approx. 10.5 g/cm³
Advantages
Cyanide-free, significantly reduced exposure to hazardous substances
Excellent soldering and bonding
Excellent electrical properties
Ideal for rack and barrel coating
Applications
Electrical assembly and connection technology
Power Electronics
Medical Technology
