Surface finishing

Platinum plating

Technical platinum deposits for demanding applications, requiring very high precision regulation.

Micronics Systems designs rectifiers suited to this process: controlled voltage, reliable current and sustained performance, even on the most demanding lines.

TechnicalCatalysisPrecision
Pièces métalliques traitées — platine
Understanding the process

Platinum plating in detail

Platinum plating is an electrolytic deposit of platinum, a precious metal known for its exceptional chemical stability , its corrosion resistance and its catalytic properties. Even more than for decoration, it is sought after for its technical performance.

It is used in demanding applications: catalyse, electrodes, electrochemistry, electrical contacts, equipment operating in aggressive environments. In these fields the deposit has to be perfectly controlled, because it directly determines whether the part works.

As with rhodium, platinum is a rare and expensive metal : the process demands very high precision regulation, both to guarantee the technical quality of the deposit and to keep material consumption under control.

01

Preparation

Thorough cleaning and activation of the surface to be treated.

02

Platinum plating

The platinum deposits under a finely regulated, stable current.

03

Rinsing

Controlled rinsing, with recovery of the precious material.

04

Inspection

Checking thickness and the expected technical properties.

Unregulated power supply CURRENT DELIVERED CROSS-SECTION OF THE PART
  • Thin deposits sensitive to the slightest variation in current
  • Result not repeatable from one batch to the next
  • An expensive bath used up with no guarantee of the result
MicronX rectifier CURRENT DELIVERED CROSS-SECTION OF THE PART
  • Setpoint held throughout the deposition
  • Repeatable result from one batch to the next
  • Controlled platinum consumption

There is no platinum deposit at all without direct current: the comparison is about the quality of that current, between a supply that fluctuates and a regulated rectifier.

What the rectifier brings

Why the rectifier is decisive here

For technical applications such as catalysis or electrochemistry, it is the consistency and fineness of the deposit that determine how the part performs. An imprecise power supply compromises both technical quality and profitability, on one of the most expensive metals there is.

Micronics rectifiers deliver very high precision regulation and perfect stability, for reproducible platinum deposits that meet the most exacting requirements — while optimising the use of the precious material.

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