Epoxy zinc-rich primer is the most commonly used primer. It can be used to paint a variety of materials, such as aluminum plates and steel structures. It plays an important role in steel structures. It is mainly used for corrosion protection. Can be welded. For steel structure epoxy zinc-rich primer is one of the indispensable primers. To

1. Check whether the flatness of the substrate meets the requirements, and repair the unevenness in time. To

2. Spray epoxy zinc-rich primer on the surface of the dry steel structure.

3. It is required to spray evenly, not to miss spray, the color should be uniform, no blooming phenomenon, and no construction is allowed in strong wind and rain. To

4. Spray the epoxy zinc-rich primer twice, and check after spraying. It is found that there are scratch marks or bee-eyes on the surface, which must be polished to meet the requirements.

5. Use 360-mesh or 420-mesh water abrasive paper for polishing. Careful polishing should be used to ensure that the coating film cannot be worn through.

6. Dust removal should be carried out after polishing, and the dust generated by polishing the surface of the steel structure should be cleaned with a rag. If the dust is not clean, the fluorocarbon paint will not be able to achieve a smooth coating film.

7. After the epoxy zinc-rich primer is sprayed, the color should be uniform, the gloss should be uniform, the surface of the coating film should be smooth, and there should be no dust and other stains. To

The epoxy zinc-rich primer has good corrosion resistance, good mechanical properties, strong adhesion, conductivity and cathodic protection. One film is above 75um, which can be used as pre-coating primer in workshop. The thick film is welded at 15-25um without affecting the welding performance. The epoxy zinc-rich primer can also be used as an anti-rust primer.

The above are the matters needing attention in spraying steel structure with epoxy zinc-rich primer. I hope it will be helpful to everyone!