Used this product to work on scratches to a car door and bonnet caused by grandchildren 'drawing' on it with a stone... all the scratches were very noticeable before and all the lighter ones, even one or two which went through to the primer, are now completely gone and the deepest ones don't notice - in fact the panels now look perfect. Pity I didn't take before-and-after photographs. The instructions on the tube say that any scratches deep enough to catch a fingernail will be too deep to remove - in fact some of the scratches we removed using this product were that deep. (Obviously if a wide chunk of paint was gone you'd be out of luck - it's a cutting paste, not a magic wand...) Highly recommended - saved the cost of a respray!