Metallising is a process subject to the ISO 2063 STANDARD, which consists of melting metal in wire or powder form inside a flame or electric arc spraying gun, and of spraying it molten using compressed air, over steel stripped beforehand with abrasive jets.
Zinc sprayed in this way, instantaneously solidifies in contact with the steel surface, and forms a zinc coating. Anti-corrosion protection is thus immediate. Adding a sealer is recommended though, since the metal coating is slightly porous.
Moreover, the porous character of the metal coating layer provides an ideal substrate for applying an additional paint layer, either for aesthetic reasons or for reinforced anti-corrosion performances of the metal coating. In this case, we talk about a duplex system (metal coat + paints).
The thickness of the metal coating obtained can vary between 50 and 200 µm. This provides long-term protection against corrosion! This flexibility also allows the metal coating operator to adapt to all corrosion classes, and to technical specifications.
The metallising process can be carried out in a workshop or on site, and is perfectly suitable for structures too large to be hot-galvanised.
Achieving perfect adhesion of the metal coating to the substrate begins with meticulous surface preparation. Blasting, an ideal method, involves manually spraying steel or angular cast iron shots using compressed air or turbines onto the surface. This process continues until meeting the standards outlined in ISO 2063, ensuring:
Metallizing requires specific atmospheric conditions to ensure optimal results:
It’s imperative to verify these conditions before commencing any metallizing work. Once met, metallizing can begin promptly after shot peening, with two application methods available: by flame spraying gun or by electric arc spraying gun.
Zinc and zinc-aluminium coatings are typically reinforced with liquid or powder paints for added protection and aesthetic appeal. Beyond aesthetics, these paints safeguard the surface and extend the lifespan of the metal coating.
We understand that every project is unique, which is why we tailor our services to meet your specific requirements.
Quality is at the forefront of everything we do. From the materials we use to the techniques we employ, we prioritize excellence in every aspect of our work.
We stand behind the quality of our workmanship with confidence. That’s why we provide warranty certificates for added peace of mind.
We adhere strictly to all relevant legal standards and regulations, ensuring that every aspect of our work meets or exceeds industry requirements.
We always formalize our agreements with a comprehensive contract for work. This document outlines the scope of the project, timelines, deliverables, and any other relevant terms.
We take pride in our ability to bring your ideas to life, offering customized solutions tailored to your unique preferences and specifications.
