As you continue, you’ll need to use a plastic putty knife to apply body compound to any deep scratches; a metal one will cause more damage. Make sure to read the instructions on the label and follow them closely. After the body compound hardens, you can sand the spot flat and blow away all the dust again. Then, spray the primer onto the scratch and let it dry overnight. In the morning, use the brush from the touchup paint to paint the area, and then let it dry overnight. You may find that a finish polish is less abrasive than a regular compound.
It’s time to consult the professionals if the scratch on your car is stretched across a door or the hood, because you’ll find a better finished-product by having a body repair shop repaint the entire panel. If a scratch or scrape is left alone for a long time without repair, the area could start to rust, which is nearly impossible to stop once it has started. A small scratch, though, should be easy to tackle with the car scratch repair instructions given here.
