Since there is no gel coat, the color is solid all the way through, much like a Corian® countertop. For a small scratch, simply sand the scratch out, starting with 240 or 320 grit sandpaper, work your way up to the next grit, ending at 800. 240 to 320 to 400 to 500 to 800 is typical and reduces the chance of leaving swirl marks when you are done. This will leave the surface with a matt or semi-gloss finish. Go to the Restore Sheen section to learn how to get the gloss back.