No matter how carful we are, at some point scratches will appear on your finish. The rule of thumb, if you can fell it with your finger nail, its through the clear coat. The number one question I get asked in my shop is "can you remove all the scratches?" I identify each one individually, and work to "improve" them. That is why I talk in terms of percentages. Example, I can improve this scratch by 65%. Ii all depends on how deep it is. Our clear coat paint system is made up of the metal surface/the primer coat/base coat(or color coat) and fininally the clear coat. Most clear coats are only 2-4 mils thick, which is the thickness of a piece of paper. So you can see how difficult it is to repair. Todays chemicals are designed to "level" the paint making it less noticable.
Due to the evolution of paint, old fashion compounds can actually damage clear coats. Modern "Paint levelers" also referred to as paint cleaners with different degrees of abrasives which need to be used with a rotary buffer. These new formulas contain heat reducing abrasives that flatten under heat. This is why I often use a rotary on just certain areas where a scratch is present. The rotary buffer will wear down the clear coat quicky, and caution must as used. (along with experience) if your scratch is a minor one, you can use a paint cleaner designed for hand use. That limits its effectiveness, but it also a lot safer. Always see a professional when a rotay buffer is needed. Hope that hopes some. Gary
www.perfectautofinish.com