Use very little pressure. With your soaked paper in one hand and a wet rag in the other, begin sanding with long strokes all in the direction wind travels across the car: from bumper to windshield, for example. Sand with one hand, and use your other hand to keep the surface wet with your rag. Remember to sand evenly. Periodically take a step back to look at your progress and make sure everything looks even.
Don’t keep the buffer in one place for more than one or two seconds. Buff sparingly. Buff the scratches sparingly to prevent a burn. Keep the buffer moving and watch that you don’t overheat the surface.
