Heavy-duty anti-corrosion coating system for steel structure Bridges

Due to long-term exposure to the industrial atmospheric corrosion environment, steel structure Bridges have problems such as rusting of the base material and peeling of the coating. The maintenance cycle of traditional anti-corrosion systems is only 5 to 8 years. The owner adopts our company's heavy-duty anti-corrosion coating system, aiming to achieve a protection life of over 20 years and reduce the maintenance cost throughout the entire life cycle.

Composition of the anti-corrosion system

• Primer: Epoxy zinc-rich primer

  Zinc content ≥80%, cathodic protection prevents the substrate from rusting.

• Intermediate paint: Epoxy mica intermediate paint

  Shield water vapor penetration and enhance the density of the coating.

• Topcoat: Polyurethane topcoat

  Resistant to ultraviolet rays, resistant to rain erosion, and adaptable to temperature difference changes.

Applicable scenarios: urban elevated Bridges, steel Bridges on expressways, pedestrian overpasses, etc