The Duplex system, the combination of galvanising and powder coating, offers the most enduring protection in the fight against the corrosion of steel. The powder coating protects the zinc layer from the outside and the zinc layer protects the steel against corrosion from the inside. Together, they produce a perfect synergy that protects for up to 2.5 times as long as the galvanising and powder coating separately. Rotocoat markets the Duplex system in accordance with NEN-EN-ISO-1461, NEN 5254 and NEN-EN 15773.
Clients opt for the Duplex system because they want:
a product with a colour;
an extra layer of protection against corrosion;
a layer that prevents contact corrosion when different materials are combined.