How to ensure the material quality of stainless steel flange? What should we do in case of long rust?
1. Remove all kinds of visible dirt on the surface before rust removal, and then remove oil with solvent or detergent.
2. Use tungsten steel spade to remove large areas of rust.
3. Use scrapers and wire brushes to remove rust at corners and edges.
4. Remove welding slag and other protrusions and burrs with a file.
5. Cleaning with abrasive cloth and wire brush.
6. Use clean cloth, or use cloth to dip solvent to clean and paint primer in time.
7. Attention should be paid to retaining the tough coatings that have not yet been invalidated, and sanding the surface of the old coatings with abrasive cloth, polishing the defect of the coatings into axe-shaped, and directly painting after cleaning.