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Surface finishing in
electrical engineering

Protection, conductivity and precision for electronic applications

Technical surfaces
that work and protect

In electrical engineering, conductivity, corrosion resistance and absolute precision count. Surfaces must function reliably, often in the tightest of spaces and under demanding conditions. Metalux offers specially customised finishing processes for components that have to deliver maximum performance in electronics and electrical engineering.

Whether contacts, housings, plug connections or thermally conductive and live components. The requirements in electrical engineering are high. Targeted surface finishing can improve electrical properties, reduce susceptibility to corrosion and ensure long-term functionality.

Surface finishing for mechanical engineering

Processes such as electroless nickel plating, passivation, chromating of aluminium or powder coating ensure the necessary functionality and durability, even with high packing densities and miniaturised components.

With its own laboratory, certified processes and a high level of consulting expertise, Metalux supports you from development to series production. Reliably, precisely and on time.

Safe electrical conductivity
e.g. for plug contacts or printed circuit boards
Reduced contact resistance
at contact points
Corrosion protection
for sensitive electronic components
Oxidation protection
for metals such as copper or aluminium
High thermal stability
for components exposed to heat
Durability & functional reliability
even with high packing density

FAQ about surface finishing in electrical engineering

Why is surface finishing so important in electrical engineering?
Because electronic components have to function precisely and reliably – often under stress. Surface finishing protects against corrosion and oxidation and ensures stable electrical properties, e.g. for plug contacts or housings.
Which coating processes are suitable for electrical engineering?
Depending on the application, electroless nickel plating (for dimensional stability and conductivity), passivation (for corrosion protection of stainless steel), chromating of aluminium or powder coating are used.
Can coated components still be electrically conductive?
Yes – by selecting suitable processes and layer thicknesses, conductive surfaces remain fully functional, e.g. for contact surfaces or EMC shielding.
How can contacts be prevented from oxidising?
Special surface treatments such as electroless nickel or passivation effectively prevent oxidation and increase the service life of electrical connections.
Are the coatings temperature-resistant?
Yes, many of our processes are suitable for high thermal loads and are also used in areas with permanently high temperatures.
Does Metalux also advise on the development of new electronic assemblies?
Yes – we support our customers as early as the design or pre-series phase in order to plan the best possible finish at an early stage and integrate it into the function.