ARGUNA® 629 Bright Silver Electrolyte

Plating solution for bright white pure silver coatings

ARGUNA® 629 silver plating solution produces bright, glossy white silver coatings and is highly suitable for both technical and decorative applications. The solution offers excellent throwing power and can operate at higher temperatures. In addition, the solution has a very wide operating range. When plating on nickel, no silver strike layer is required.

This bright silver plating solution is suitable for both rack plating and barrel plating systems. The resulting coating has a bright white appearance without a bluish tint.

Plating Solution Characteristics

• Plating solution type: Cyanide alkaline
• Metal content: 30 g/l Ag; 120 g/l KCN
• pH value: 12.0
• Operating temperature: 25 (18 – 40) °C
• Current density range: 0.5 – 4 A/dm²
• Plating rate: 0.6 μm/min at 1 A/dm²; 2.5 μm/min at 4 A/dm²
• Deposition rate: 67 mg/Amin

Coating Characteristics

• Coating type: Pure silver
• Purity: > 99.8% by weight Ag
• Coating color: Bright white
• Gloss level: Bright glossy
• Coating hardness: Approx. 110 HV 0.025
• Maximum coating thickness: More than 100 μm
• Coating density: 10.5 g/cm³

Advantages

• Can operate at higher temperatures
• High bright white appearance
• High coating purity
• Wide applicable current density range
• Excellent throwing power
• High carbonate tolerance

Applications

• 5G
• High-frequency technology
• Electrical contacts
• Jewelry