Preprocessing of Painting
Preprocessing of Painting1. Featheredging
NOTE:
- The paint film damaged area should be sanded flat and smooth.
- If this is not done correctly, the end results will not be acceptable.
Damage to metal surface:
- Sand the damaged area flat and smooth.
Use a disc sander and #6O~#8O disc sandpaper
Use the double action sander and #6O~#8O disc paper.
- Sand the area larger than the damaged area.
Use a double action sander and #18O~#24O disc sandpaper.
- If a double action sander is not available, use a rubber pad and wet or dry sandpaper.
Use a flexible block and #280, #340, #400, #600 sandpaper.
Damage to undercoat, intermediate coat and top coat:
Sand the damage area flat and smooth
Use a double action sander and #180~#240~#320 disc sandpaper.
2. Preparing metal surfaces.
Remove all corrosion from the damaged area.
Use a product that removes corrosion.
3. Air blowing / degreasing
Use alcohol, and wax, and grease remover.