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TRANSCRIPT:
Video: [blue bumper with 80 grit sandpaper scratches and angle grinder scratches]
Voice: So here's the basics of sanding and filling scratches in plastic bumpers. First, we've got to clean the bumper. I like to use glass cleaner first...[robert cleans with glass cleaner], then I wipe with a towel wettened with wax and grease remover and follow up with a dry towel [robert wipes wet..then dry].
Now we've got scuff everywhere paint might possibly land to ensure it's going to stick and create a durable repair. As a general rule, you should scuff 2 feet in every direction from the damage [robert scuffs 2 feet in every direction.
First, try to sand them out completely with your D/A sander and 80 grit sandpaper.
Video [robert sand the scratches]
Voice: I can feel that the lighter scratches are out completely, but the deeper scratches remain because I can pick at them with my fingernail. So I'm going to have to fill these low spots with filler.
Video [robert mixing filler]
Voice: Lay out a dab of filler and an even smaller dab of hardener. You want to mix about 10 parts filler to 1 part hardener. Mix it up with your bondo spreader until it's all one color--in this case pink because of our red filler.
Video: [robert applying filler]
And we'll just spread it lightly over these deep cuts and give it about 10 minutes to harden.
Video [robert sanding the filler]
Wrap 220 grit sandpaper around a foam block and sand out the filler. You might have to pause and clean up your sandpaper with compressed air ocassionally.
[robert blast the bumper with air to clear dust]
