The RDS wire bar applicator plays a key role in the preparation of passivation films. Through its uniform coating ability, waterborne acrylic resin and organosilane composite passivation fluid can be accurately applied to the surface of hot-dip galvanized aluminum-magnesium sheet, ensuring coating consistency and thickness control. This method helps to form a dense passivation film, which improves the corrosion resistance and protection of the coating. In addition, the combination of thiourea as an additive can further enhance the self-healing ability of the membrane and meet the high standards of modern industry for metal surface treatment.

Evenly coated
The RDS wire bar applicator ensures a uniform coating of the passivation solution on the surface of the hot-dip galvanized aluminum-magnesium sheet, which is essential for the formation of a dense and consistent passivation film. A homogeneous coating layer helps to improve the protective properties of the film and reduce localized defects.
Film thickness control
By adjusting the coating amount, the thickness of the passivation film can be precisely controlled. Proper film thickness optimizes corrosion resistance while avoiding brittle and peeling due to overly thick coatings.
Increase efficiency
The use of a wire bar applicator can significantly improve production efficiency, reducing operator time and material waste compared to other traditional manual coating methods.