Is it possible to get your dog’s scratches off of the car paint? While there’s no way to completely remove dog scratches from your car paint, you can try to minimize any damage. Use mild soap with water to scrub the spot. Use a car-specific scratch remover. Apply a sealant or protective coating to protect the surface from future scratching. Is toothpaste harmful to paint on cars? This question is not definitive and depends on what toothpaste you use. There are some toothpastes that can cause damage to car paint. Others may have no harmful side effects. It is best to apply a tiny amount of toothpaste to a small section of paint in order to determine whether there are adverse reactions.