Paint correction is a term used today by professional automakers and car cleaning enthusiasts around the world to describe the process of restoring and rejuvenating vehicle paint, primarily by removing surface imperfections that dull, oxidize, or darken surfaces by reflected light in multiple directions.
The term professional paint correction & polishing should only be used if these defects are correctly removed and not simply veiled or hidden with a product based on a spatula. The actual correction process consists of removing a small amount of a transparent layer of paint from the surface using a sanding varnish that is applied and treated with a suitable polishing machine to level the surface.
Image Source: Google
Cars are washed and decontaminated thoroughly before each paint correction. The paint is washed and thoroughly cleaned to remove any contaminated dirt and grime and then stapled after the washing process with a special car clay that safely removes adhering surface contaminants such as tar stains and industrial waste.
It is important to remove these contaminants before they touch the paint because if they are pushed out and caught in the base of the polishing machine, they can damage the surface very quickly.
It also helps keep the surface extremely smooth, which in turn allows the buffing machine to move freely across the surface, reducing the chance of cracking or sticking. Finally, the paint varnish will help you properly monitor the progress of the correction process, as you can see the actual condition of the surface as you work.