When to go to a professional
If your fingernail clearly catches on the scratch, or if you can see the primer or metal underneath, polishing foam is unlikely to be sufficient. In these situations, it is generally better to consult an automotive body and paint professional. Deeper damage may require sanding, repainting or other repair work, particularly when exposed metal could be vulnerable to corrosion.
This polishing-foam method is best suited to cosmetic maintenance and shallow surface marks. With a few minutes of careful work and the appropriate products, some minor scratches may become considerably less noticeable. However, results vary according to the depth of the damage, the condition of the paint and the product used, so deeper scratches should be assessed professionally.
