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 the disc sander and #60-#80 disc paper.
Use the double action sander and #60-#80 disc paper.
- Sand the area larger than the damaged area.
Use the double action sander and #180-#240 disc paper.
- If a double action sander is not available, use a rubber pad and wet or dry sandpaper.
Use the flexible block and #280, #346, #400, #600 sandpaper.
Damage to undercoat, intermediate coat and top coat:
Sand the damage area flat and smooth
Use the double action sander and #180 - #240 - #320 disc paper
2. Preparation of metal surface
Remove all corrosion from the damaged area.
Use a product that removes corrosion.
3. Air blowing/degreasing
Use alcohol, and wax and grease remover.