Car compounding refers to the process of using compounds (polishing, rubbing, or cutting) in order to restore damaged car paintwork surfaces. The abrasive qualities of the car compounds are able to smooth & restore the clearcoat layer. Rubbing compounds basically targets the uneven car's surfaces caused by scratches while on the other hand; polishing is preferably used for adding smoothness and shine to the car paint. Both will help in improving your car's quality but in a different way.