ARGUNA® 630 Fine Silver Electrolyte

For deposition of bright silver layers

ARGUNA® 630 is an alkaline-cyanide silver electrolyte for (electro) technical and decorative applications. Depending on the operating parameters chosen, the electrolyte can be used in reel-to-reel plating as well as for rack and barrel plating.

Since thick and bright silver layers can be deposited from ARGUNA® 630, it is suitable for decorative purposes. In the technical field, the main focus clearly is on the very good electrical properties and the excellent bonding and soldering characteristics of the silver layers.

Due to a reflection density of up to 1.5 GAM and the high temperature resistance of the coatings, the electrolyte can also be used for final finishes on LEDs.

Electrolyte characteristics

Electrolyte type

Alkaline-cyanide

Metal content

30 - 60 g/l Ag

NaCN content

130 (110 - 140) g/l

pH value

12.5

Operating temperature

25 - 40 °C

Current density range: Rack operation

0.5 - 5 A/dm²

Current density range: Barrel operation

0.5 - 2 A/dm²

Current density range: Reel-to-reel plating

10 - 40 A/dm²

Plating speed: Rack operation at 1 A/dm2

1 μm in 1.5 min

Plating speed: Rack operation at 5 A/dm2

1 μm in 0.3 min

Plating speed: Reel-to-reel plating at 20 A/dm2

13 μm in 1 min

Anode material

Pt-Ti (type PLATINODE® Pt/Ti)

Coating characteristics

Coating

Fine silver

Purity

99.9 wt.% Ag

Colour of deposit

White

Brightness

Bright

Hardness

100 - 130 HV as plated

Max. coating thickness

> 100 μm

Density of the coating

10.5 g/cm³

Advantages

  • For (electro)technical and decorative applications
  • Suitable for rack and barrel plating
  • Bright and thick layers can be deposited
  • Operating temperature up to 40 °C possible
  • Transparent colour of the electrolyte
  • Can be used in reel-to-reel plating using flow or spray technologies for either all-over or selective silver plating of strip materials
  • Excellent soldering and bonding properties
  • High temperature resistance of the layers
  • Reflection density of the coatings of up to 1.5 GAM possible
  • Can be used as LED final finish

Applications

  • Contact surfaces of electrical and electronic components
  • Coated wires as high-quality conducting material for medical technology and aerospace industry
  • LED final finish
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Questions about the product?

Markus Legeler

+49 7171 607 204

For inquiries and additional information
please contact

Umicore AG & Co. KG
Rodenbacher Chaussee 4
63457 Hanau-Wolfgang
Germany

Tel.: +49 (6181) 59 6005
Fax: +49 (6181) 59 2970
Email: chemistry@umicore.com
Website: www.chemistry.umicore.com

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