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ARGUNA® 4500 Fine Silver Electrolyte

ARGUNA® 4500 Fine Silver Electrolyte

The new bright silver high-speed electrolyte

ARGUNA® 4500 is a fine silver electrolyte for the fast deposition of ultra-bright coatings with excellent bonding, soldering and adhesive properties.

ARGUNA® 4500 is used for the selective deposition of bright silver layers in reel-to-reel plating using flow and spray technologies such as jet or spot plating modules. Applicable current density and plating speed mainly depend on the electrolyte agitation at the parts, i.e. on the flow velocity in the plant. Under optimum conditions, layers with extreme brightness and reflectance can be produced.

The electrolyte works with insoluble anodes and can be operated with very low concentrations of free cyanide.

Electrolyte characteristics

Electrolyte type

Weakly alkaline, low amount of free cyanide

Metal content

90 (60 - 120) g/l Ag

pH value

9 (8.5 - 11)

Operating temperature

60 (50 - 70) °C

Current density range

50 - 250 A/dm²

Plating speed

up to 2.6 μm/s

Anode material

Pt-Ti (type PLATINODE® Pt/Ti)

Electrical conductivity

>50 m*(Ω*mm²)-1

Coating characteristics

Coating

Fine silver

Purity

99.9 wt.% Ag

Colour of deposit

White

Brightness

Bright

Hardness

100 - 130 HV as plated

Advantages

  • High-speed electrolyte for the selective deposition of fine silver
  • For reel-to-reel plating using flow or spray technologies
  • Bright coatings with very good soldering and bonding properties
  • Insoluble anodes
  • With little free cyanide

Applications

  • Contact surface for semiconductors and electrical components
  • Leadframe packaging for soldering, bonding and adhesive applications

Downloads

  • Produktblatt-arguna-4500-en-screen-20190416.pdf

Your contact person

Markus Legeler

Markus Legeler

Manager Sales International
T: +49 7171 607 204
F: +49 7171 607 316
Email

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Umicore RISE Strategy 2030