See the following table for the treatment method of peeling coating
| Stripping grade | Approach | |
| two-component coating | one-component coating | |
| P1 | Use manual or power tools to remove the loose paint around until the coating is completely attached, and repair the primer and topcoat to the specified film thickness according to the "Painting Instructions". | Remove the surrounding loose paint with hand tools until the coating adheres well, and repair the primer and topcoat to the specified film thickness according to the "Painting Instructions" |
| P2 | Use manual or power tools to remove the loose paint around until the coating is completely attached. After roughening, repair the primer and topcoat to the specified film thickness according to the "Painting Instructions". | Use hand tools to remove the loose paint around until the coating adheres well, and repair the primer and topcoat to the specified film thickness according to the "Painting Instructions". |
| P3 | Use manual and power tools to remove the loose paint around until the coating is completely attached. After roughening, repair the primer and topcoat to the specified film thickness according to the "Painting Instructions". | Use manual and power tools to remove the loose paint around until the coating is completely attached. After roughening, repair the primer and topcoat to the specified film thickness according to the "Painting Instructions". |
| P4 | Use power tools to effectively remove the loose paint around until the coating is completely attached, and the peeling concentrated parts should be swept and sanded; when the paint film is peeled off from the substrate, the surface treatment should reach Sa2~Sa2.5 level. Repaint according to the "Painting Instructions". | Use power tools to effectively remove the loose paint around until the coating is completely attached; when the paint film is peeled off from the substrate, the surface treatment should reach Sc2~St3 level. Repaint according to the "Painting Instructions". |
| P5 | Comprehensive sandblasting treatment to effectively remove the coating; when the paint film is peeled off from the substrate, comprehensive sandblasting treatment should be carried out to effectively remove all coatings, and the surface treatment should reach Sa2 ~ Sa2.5 level. Repaint according to the "Painting Instructions". | Use power tools to fully polish the coating: when the paint film is peeled off from the substrate, use power tools to perform comprehensive grinding treatment to effectively remove all coatings. The surface treatment should reach St2~St3 level. Repaint according to the "Painting Instructions". |
