PLATUNA®-Alloy 1 Platinum Ruthenium Electrolyte

Extraordinarily abrasion-resistant coatings – saving platinum

PLATUNA®-Alloy 1 is used for depositing smooth, ultra-bright and extraordinarily abrasion-resistant platinum-ruthenium alloy coatings. The acidic electrolyte is used for decorative applications and guarantees light, white layers - crack-free up to 1 μm.

PLATUNA®-Alloy 1 works across a wide operating range and reaches an excellent covering speed. It is used for rack operation.

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

35 (30 - 40) °C

Current density range

2.0 (0.5 - 5.0) A/dm²

Plating speed

Approx. 0.08 μm/ min at 2.0 A/dm²

Anode material

MMO (type PLATINODE® 187 SO)

Coating characteristics



Alloy composition

75 weight % Pt
25 weight % Ru

Colour of deposit





Not measurable, Approx. 500 HV

Max. coating thickness

1.0 μm

Density of the coating

Approx. 19.16 g/cm³


  • Acidic platinum alloy electrolyte - saves expensive platinum
  • Light, white and ultra-bright coatings
  • For decorative applications
  • Extraordinarily abrasion-resistant
  • Wide operating range
  • Up to 1 μm layer thickness (crack-free)
  • The coatings are RoHS compliant
  • Suitable for racks


  • Jewellery
  • Writing implements
  • Watches
  • Spectacle frames
  • Accessories

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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

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.