Metal surface treatment improves sheet metal performance

Discover the advances metal surface treatment grants and request an estimate from a company specialised in sheet metal processing to obtain complex and assembled products.

Advantages of metal surface treatment

Surface treatment allows metals to acquire mechanical-physical characteristics able to make products more resistant with higher performance. For this reason, in sheet metal processing, metal treatment is essential, especially when complex and assembled products ready to market must be created. Metal treatment, in fact, increases sheet metal performance in terms of: 


Surface treatment delay the metal oxidation process, thus prolonging the duration of the single products and hindering rust formation. Metal surface treatments thus become essential for all those products that will be in contact with the elements, such as car components, or products subject to stress from water or other liquids, such as kitchen robots.


Thanks to metal surface treatments, single sheet metal products also acquire greater surface hardness and thus become more resistant, also from the mechanical stress standpoint, a fundamental aspect when dealing with electromechanical or home appliance components.

Subsequent processing

Processes such as phosphate-coating or nickel-plating make the sheet metal surface more homogeneous and suited for subsequent processes. Subsequent paint applications are thus promoted through these processes and the colours are more even and glossy.


Burnishing, anodising, polishing, painting, etc., are surface treatments that allow the sheet metal to obtain a more attractive aspect, in line with the end product design. Whether dealing with components for the medical, vending, home appliance or car sectors, metal treatments becomes almost mandatory to make products more attractive and be successful on the market.


Processes for metal surface treatment

We can perform the following metal surface treatments on aluminum, stainless steel, copper, iron and special alloys to improve their resistance but also to obtain high quality finishes:

Metal galvanising

Process that allows to coat the zinc metal preserving it from external agents. Hot-applied by immersion, or cold using the spray method.

Metal nickel plating

Like galvanising and with the same purpose, this step is through chemical nickel plating or sometimes by electrolytic method.

Metal chrome plating

In order to prevent corrosion, through galvanic deposition in an electrolytic bath, a metal object is coated with a thin layer of chrome.

Metal silver plating

Procedure that allows to give the metal the conductive and protective characteristics of silver. Through the subsequent passivation it is possible to block the typical silver sulfidation.

Metal burnishing

Galvanic or chemical metal surface treatment, once obtained with a live flame, which improves the appearance of pieces in iron or carbon steel.

Metal phosphatization

Process used as a preparation base for the coating of ferrous alloys which improves corrosion resistance properties

Metal painting: cataphoresis - powdering

Type of painting that increases the resistance to corrosion by coating acrylic or epoxy resin. This is the most used procedure in the automotive field.

Metal polishing

It is obtained by grinding and subsequent passage with an abrasive paste which allows to obtain a smooth and shiny final effect.

Metal peening

A jet of balls under pressure hits the surface causing a millimeter surface deformation and allows increasing the fatigue resistance of the metal component.

Metal sanding

This metal surface treatment allows the damaged or corroded parts to be removed from a metal object through a jet of sand and air.

Metal anodizing

Procedure generally applied on aluminum, zinc and magnesium in order to allow the formation of a thin protective layer of oxide.

Stainless steel electro-polishing

In this process, the outer layer of stainless steel is removed in order to expose a part of the surface more resistant to corrosion.



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