How to Repair Black Paint Marks on a White Car

Written by irene a. blake
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Black paints marks, or any type of black mark for that matter, on a white car's exterior can make the car appear dirty. Even a few streaks can detract from the vehicle's overall appearance. To restore or enhance the car's paint job isn't difficult. Typically, you can remove and repair black paint mark damage with an abrasive substance and touch-up paint.

Skill level:
Moderately Easy

Things you need

  • Water
  • Bucket
  • Melamine resin foam eraser
  • Toothbrush (optional)
  • Toothpaste (optional)
  • Pumice powder (optional)
  • Sandpaper (optional)
  • Microfiber cloths
  • Auto touch-up primer/paint/clear-coat
  • Rubbing compound (optional)
  • Safety glasses
  • Gloves
  • Mask

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  1. 1

    Submerge and completely soak your melamine resin foam eraser in a bucket of warm water.

    If you don't have a melamine resin foam eraser, use a soft-bristled toothbrush instead.

  2. 2

    Rub the first black paint mark lightly with your wet eraser. Apply gentle, light pressure as melamine resin can scratch the paint underneath/around the mark if you scrub the area harshly. Repeat with each mark.

    If you're using a toothbrush, wet it and place a pea-sized amount of toothpaste on it before gently brushing the marks. Toothpaste contains specks of silica---a hard mineral that acts as an abrasive that can dislodge the paint marks in the same way that it dislodges stains from teeth.

  3. 3

    Use wet pumice powder on a toothbrush or wet fine sandpaper (800-grit or higher) to rub away any marks that the eraser or your toothbrush/toothpaste doesn't remove. To reduce possible damage to your car's original paint, avoid rubbing the white paint areas around the marks.

  4. 4

    Rinse the former marred areas with water and a lint-free microfiber cloth to remove paint specks. Air-dry.

    If you can't remove the black marks entirely, or you discover scratches beneath the marks/caused scratches with the eraser, use touch-up paint after allowing the areas to dry completely.

  5. 5

    Touch-up any scratched areas with white auto-spray touch-up paint (large areas) or applicator touch-up pens (areas smaller than a pencil eraser). When using either paint touch-up tool, follow the instructions on the package for the specific product. No matter the product, apply a primer, then the paint, followed by a clear coat.

    If you're using an auto-spray, application typically involves holding the spray can nozzle at least 5-inches from the car's surface and lightly spraying back-and-forth in a sweeping motion. If you're using a pen applicator, typically you'll run the pen tip slowly---to allow the primer, paint and/or clear-coat time to flow from the tip---along the scratch from one end to the other.

  6. 6

    Follow the instructions on the package for drying times. After the touched-up areas have dried completely, even out any uneven paint areas with your 800-grit sandpaper or a medium rubbing compound. Wipe away any excess (sand/paint or rubbing compound) using a lint-free microfiber cloth and then wash and/or polish your vehicle as desired.

Tips and warnings

  • To remove black paint inside of scratches or cracks, dip a moistened soft-bristled toothbrush in pumice powder and gently scrub/brush into the areas to dislodge the paint.
  • Although you can use your melamine resin foam eraser on tough, difficult-to-remove black paint marks, take care when doing so as melamine resin can easily scratch the painted surface of your car.
  • Always wear safety glasses, gloves and a mask when rubbing away the black marks and/or using touch-up paint as sand or paint specks are breathing hazards. In addition, touch-up paints contain chemicals hazardous to human health.

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