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


Metal content

30 - 60 g/l Ag

NaCN content

130 (110 - 140) g/l

pH value


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


Fine silver


99.9 wt.% Ag

Colour of deposit





100 - 130 HV as plated

Max. coating thickness

> 100 μm

Density of the coating

10.5 g/cm³


  • 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


  • Contact surfaces of electrical and electronic components
  • Coated wires as high-quality conducting material for medical technology and aerospace industry
  • LED final finish
back to top

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

Tel.: +49 (6181) 59 6005
Fax: +49 (6181) 59 2970

The information and statements contained herein are provided free of charge. They are believed to be accurate at the time of publication, but Umicore makes no warranty with respect thereto, including but not limited to any results to be obtained or the infringement of any proprietary rights. Use or application of such information or statements is at the user´s sole discretion, without any liability on the part of Umicore. Nothing herein shall be construed as a license or recommendation for use, which infringes upon any proprietary rights. All sales are subject to Umicore´s General Conditions of Sale and Delivery.