Learn how to repair deep scratches in your car’s paint, such as those caused by someone keying your car, using a touch-up paint pen. Fixing scratches, especially clear coat scratches, is a simple process. To remove deep scratches, you will need to follow a few steps including cleaning the scratch, sanding it, applying touch-up paint, smoothing the paint with factory paint, adding clear coat, wet sanding, and then polishing the panel. You will need supplies like paint pens, sandpaper, polish, microfiber towel, tape, and isopropyl alcohol. Remember to always practice safe practices when working on your vehicle.