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PLATUNA® Alloy RU Platinum Ruthenium Electrolyte

PLATUNA® Alloy RU Platinum Ruthenium Electrolyte

Cost-saving electrolyte for brilliant jewelry

With the strongly acidic alloy electrolyte PLATUNA®-Alloy RU, smooth, shiny and crack-free platinum-ruthenium coatings can be deposited up to a layer thickness of 0.5 μm. The deposited coatings are characterized by brilliant gloss and, in contrast to conventional platinum coatings, do not exhibit a yellow tint.

The advantage of the electrolyte is mainly the cost saving due to the ruthenium content. This is because ruthenium is still the cheapest metal among the platinum group metals. Furthermore, the electrolyte has a low sulfuric acid content and is therefore less aggressive to the coating substrate. The deposition rate is independent of the current density, which leads to an optimum layer thickness distribution. No precipitation occurs and the platinum concentrate does not have to be stored in the refrigerator.

Electrolyte characteristics

Electrolyte type

Strongly acidic

Metal content

1.0 (0.8 - 1.2) g/l Pt, 1.0 (0.8 - 1.2) g/l Ru

pH value

< 1

Operating temperature

60 (55 - 65) °C

Current density range

3 (0.5 - 10) A/dm²

Plating speed

approx. 0.06 μm/min at 3 A/dm²

Deposition rate

approx. 4 mg/Amin at 3 A/dm²

Coating characteristics

Coating

Platinum ruthenium

Alloy composition

approx. 80 % Pt, approx. 20 % Ru

Colour of deposit

White

Brightness

Bright, brilliant

Hardness

not measurable, approx. 500 HV

Max. coating thickness

approx. 0.5 μm

Density of the coating

approx. 18.7 g/cm³

Advantages

  • Excellent brightness without yellow tint
  • Longer durability
  • High abrasion resistance
  • Current density independent
  • Easy handling - no cold storage and no precipitation

Applications

  • Jewelry
  • Watches
  • Writing implements
  • Spectacles frames
  • Bathroom fittings

Downloads

  • Produktblatt_PLATUNA_Alloy_RU_EN.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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