Zinc phosphate is a chemical conversion treatment applied to steel that forms a microcrystalline protective layer, designed to improve the material’s resistance to corrosion and prepare the surface for subsequent coatings. At Chousa, we use this process as part of integrated surface protection solutions, ensuring uniformity, process control, and industrial-quality results.
This treatment is especially recommended when maximum anticorrosive performance is required in painted systems, as it optimizes the interaction between the base metal and the final coating, extending the overall service life.
Characteristics
- Defined, homogeneous, and controlled crystalline structure
- Coating weights from 1.5 to 6 g/m²
- Excellent surface for paint adhesion
- Maximum corrosion resistance under paint
- Higher corrosion resistance compared to iron phosphate
