Paint correction is the mechanical leveling of clear coat or paint (clear coat is unpigmented paint, clear) to a point where all the paint is free of swirl marks and light scratches. Swirl marks are essentially a “V” cut/slice in the paint where light bounces around in the valley of the scratch and exits. This is how you see the swirl marks. If the paint was flat, with no valley, you wouldn’t have anywhere for the light to bounce around...that is where paint correction shines the best.
As the polishing steps are carried out, there are various degrees of aggressiveness which are used for different levels of desired end results. For example, not everyone needs or should have “perfect paint,” some are simply ok with much better, not perfect. Not everyone looks at their paint with a flashlight. This can be a straightforward and simple process, or a very labor intensive process where experience and knowledge are of the utmost importance depending on the car owner’s expectations. We take the time to figure out the proper steps and use the correct products to achieve the desired results in a timely fashion. We don't cut corners by “filling” in defects by using oils and glazes to make it “look” like things were done, only to find out after two washes all the oils are removed and your paint looks the same as before.