PALLUNA® 468 is a weakly ammoniacal high-speed electrolyte for depositing palladium-nickel alloys in reel-to-reel equipment (selective dipping, jet...
For high-speed deposition in reel-to-reel equipment
PALLUNA® 468 is a weakly ammoniacal high-speed electrolyte for depositing palladium-nickel alloys in reel-to-reel equipment (selective dipping, jet plating, brush plating) and in reel-to-reel tab-plater.
Normally, coatings containing at least 80 % of palladium are deposited, the alloy composition can be adjusted by simply changing the palladium concentration in the electrolyte, however. The ductile layers are white, bright and they exhibit a good resistance to tarnishing and corrosion.
Electrolytes Characteristics
| Electrolyte type | Weakly ammoniacal |
| Metal content | 20 (18 - 22) g/l Pd |
| pH value | 7.5 (7.4 - 8.0) |
| Operating temperature | 45 (43 - 47) °C |
| Current density range | up to 60 A/dm² |
| Plating speed | up to 16 μm/min |
| Anode material | Pt-Ti (type PLATINODE® Pt/Ti) |
Coating Characteristics
| Coating | Palladium-nickel |
| Alloy composition | 80 wt.% Pd 20 wt.% Ni |
| Colour of deposit | White |
| Brightness | Bright |
| Hardness | 580 - 620 HV |
| Max. coating thickness | 10 μm |
| Density of the coating | 10.8 g/cm³ |
| Solderability | Good |
| Elongation | Approx. 3 % |
| Bendability | 2 μm crack-free |
| Bondability | (with fine gold flash) Good |
Advantages
- Improved abrasion resistance
- High number of mating cycles
- Low porosity and crack-free
- Low internal stress
- High plating speed
- Constant alloy composition
- Long bath life
Applications
- Reel-to-reel equipment (selective dipping, jet plating, brush plating)
