Sand the base coat of paint with 800-grit sandpaper after using polyester body filler; learn how from our expert custom-car mechanic in this free auto-restoration video.
Now Dan is sanding with 800 grits sand paper to remove the last little traces of the repair. He filled it originally with polyester body filler. That did a good job filling the majority of the defect. The last of the little defect that he fills with, actually just a first coat of paint using it like a primer. It fills the little line around the repair left by the body filler. Since Dan did not introduce any new contentments he was just able to wipe it down with the tact rag and get it clean again. Now we are going to for another coat of the base maroon color just to fill up the little bit of sanding that he just did. We are just trying to make sure that we got good coverage over the repair area. There is not little lines showing and no sand scratches showing. The paint acts like a filler for that.