Metallising

Zinc-aluminium 85/15

ZINACOR® Z850
Z851
ZINACOR® Z851
⌀ 1.60mm

Pure Zinc

ZINACOR® Z100
Z102
ZINACOR® Z102
⌀ 1.20-1.60mm

Other wires

Tin-zinc-titanium Z42
Tin-copper SnCu3
Tin-zinc-copper SnZn7Cu3
Tin-Zinc SnZn9
Tin-zinc SnZn20
Tin-zinc SnZn30
Tin-zinc SnZn40
Tin-zinc SnZn50

Calculator

Specially designed for you, this tool will help you estimate, step by step, the thickness of the coating to apply and the quantity fo wire to use in all your projects, whichever corrosion classes you work with and the type of wire selected.

5. Recommended coating thickness

5. Estimated quantities

m²

^* The figure given above is purely theoretical and is given for information only. It therefore does not engage Zinacor S.A. in any way. In practice, you will have to take into account many technical, design and human factors that will increase the quantity to be used.

Zinacor S.A.

Centre d'affaires Dony
Rue de Chênée 53 (entrée B)
B-4031 Angleur- Belgique

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Anti-corrosion protective systems containing zinc

This method consists of melting metal either in wire or powder form inside a flame spray gun or an electric arc gun, and then, using compressed air, spraying the molten metal over the steel, stripped beforehand with abrasive jets. The metallising process is standardised: ISO 2063 STANDARD. Zinc sprayed in this way instantaneously solidifies in contact with the steel surface and forms a zinc coating. Anti-corrosion protection is thus immediate.

Since metallising coating is slightly porous, it is recommended to apply a sealer. Moreover, the porous character of the metallised surface provides an ideal substrate for applying an additional paint layer, either for aesthetic reasons or for reinforced anti-corrosion performances. This is called a duplex system (metal coat + paint).

The coating thickness can vary between 50 to 200µm, which is ideal for long-term protection against corrosion. This flexibility also allows the applicator to adapt to all corrosion classes and to technical specifications. The process can be carried out in a workshop or on-site and is perfectly suitable for structures too large to be hot-galvanised.

Two systems are generally used for the wire:

Metallising with an electric arc gun: this process consists of introducing two zinc or zinc-aluminium alloy wires into an electric arc spray gun. When these two wires come into contact, an electric arc forms and melts the zinc which is then sprayed using compressed air onto the surface to be metallised. Wires with finer diameter, generally 2.50mm max, are used for this type of spray gun.
Metallising with a flame spray gun: this process consists of introducing a zinc or zinc-aluminium alloy wire into a spray gun fed with a flammable gas mixture (propane or acetylene and oxygen). The wire across the gun is melted by combustion and then sprayed using compressed air onto the surface to be metallised. Wires with larger diameter, generally starting at 3mm, are used for this type of spray gun.