Filing/Sanding Apply putty to repair any holes or deep gouges. Apply the putty on the damaged are in 2~3 steps. Glue aluminium tape on the outside of the bumper, and apply putty from the other side of the bumper. Remove the aluminium tape after the putty dries, apply putty from the outside, and fill the hole. Use a special polyester putty (Reference) and a putty knife. Aluminium Tape Outside Sanding Sand the surface evenly, particularly at the area where the PP material and putty meet. Use a flexible block and #240~#400~#600 sandpaper. Featheredging Air blowing/degreasing Use alcohol, a tack cloth, and wax and grease remover.

Spraying primer surfacer NOTE: Spray the bumper primer (see page 6-17) on the area where the PP material was exposed and around the putty. Spray the primer surface wider than the putty and painted surfaces of bumper primer. Spray 2~3 coats to get 20~30 microns of thickness. Use the 2-component type primer surfacer (grey) and a spray gun. Follow the materials manufacturer's instructions. Drying NOTE: Take care not to let the heat lamp deform the bumper during the drying process. Sanding After drying, wet sand the area of the intermediate coat. Use the #600 sandpaper. NOTE: Do not use less than #600. 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.