Preprocessing of Painting

Preprocessing of Painting

1. 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 #6O~#8O disc paper.




Use the double action sander and #6O~#8O disc paper.




- Sand the area larger than the damaged area.

Use the double action sander and #1BO~#24O 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, #340, #400, #600 sandpaper.




Damage to undercoat, intermediate coat and top coat:
Sand the damage area flat and smooth

Use the double action sander and #18O~#24O~#32O 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.