Media blasting cars using an abrasive rather than a soft media such as soda or walnut is ideal. After blasting the end result is a fresh start or a white canvas and a perfect surface profile that allows for perfect adhesion. We DO NOT recommend dustless blasting an automobile. Think about it, do you really want your project shot creating a mud like media mess inside blind cavities and rockers? It is already hard to get out dry media and then add water to the job.