Intermediate Coating
Intermediate CoatingNOTE: You must do this procedure on the PP parts of the bumper and side sill panel.
1. Masking
Mask the area surrounding the damage to prevent over-spray from the intermediate coat.
Use masking tape and paper.
2. Spraying top coat enamel
- Spray the top coat enamel over the surface until the primer surfacer is fully covered.
- Spray 2-3 coats to get 15-25 microns of thickness.
- Use a 2-part polyester urethane top coat enamel and a spray gun.
- Mix the top coat enamel with the additive and solvent, using the correct ratio.
- Follow the top coat manufacturer's instructions.
Drying
NOTE: Take care not to let the heat lamp deform the bumper during the drying process.
After spraying the top coat enamel, allow for 5 to 10 minutes of normal drying, then force dry it with infrared lamps or other industrial dryer.
3. Polishing
Check that the top coat enamel has dried thoroughly, then sand the top coat enamel.
Use a flexible block and #600~#800~#1000 sand paper.
NOTE: Be careful not to sand down to the primer surfacer.
When the painting repair is almost complete, polish the top coat.
Use #1500 sandpaper and compound.
4. Air blowing / degreasing
Use alcohol, a tack cloth, and wax and grease remover.
Also, clean and degrease the surfaces where the masking tape will be attached.