How to Repair Automotive Plastic

Car bumper

Usually the only external plastic part of an automobile is its bumper. Since the bumper was set in place to prevent severe damage to the car in an accident or otherwise, it may get banged up over time. You can repair the bumper using a special patching technique and you do not need to bring your car in for an expensive repair.

Things You'll Need

• Soap
• Water
• Soft sponge
• Soft cloths
• 180-grit sandpaper
• Adhesion promoter
• Applicator brush
• Measuring tape
• Bumper patch
• Scissors
• Hair dryer or heat gun

Instructions

1. Clean the surface with the sponge using a soap and water solution. Dry with soft cloths.

2. Roughen the surface using the sandpaper. Keep sanding the area on top and surrounding the damage to remove the paint and reveal the plastic underneath.

3. Use the applicator to apply the adhesion promoter. Allow 15 minutes or so for it to dry before applying the patch.

4. Cut the patch to be at least 1 inch, or more, wider and longer than the damage. This will leave enough room for the patch to sufficiently bond with the bumper once applied.

5. Heat the patch using the hair dryer or heat gun. Be careful not to heat it too much or you could get burned. You will tell that it has been heated enough once it begins to bend.

6. Remove the paper backing from the patch, then place it over the damage. Press firmly and mold it into shape.

7. Allow a few hours for the patch to dry.

References

• Urethane Supply: Repairing Bumpers
• MD Wholesale: Bumper Repair