![]() Clean the repair area with nail polish remover or acetate.This slight roughening will help the paste adhere to the damage area. Wipe the surfaces clean with cloths or paper towels, then use 220-grit sandpaper to slightly roughen the entire repair area.Angle the sides of the damaged area so that the filler paste can be applied smoothly. ![]() ![]() If the surface is very hard or the damaged area is very large, a sanding drum or grinding disk attached to a drill or Dremel tool will make this preparation easier. Usually, this means cutting down between 1/16 and 1/4 inch. Make sure to cut down through the color layer of the acrylic or fiberglass into the structure below.
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