Cutting is using an abrasive compound to removes thin layers of paint. Cutting can be carried outdone as a prep step before you apply paint or afterwards to blend the new paint into the old. There are different types of compound, each with a different cutting power. Using a clean cloth, apply the compound in a circular motion by hand.
When painting car body panels, the obvious choice for primer will be a standard two-pack urethane primer. But although this is fine for professional body shops, it can create significant corrosion problems for the DIY enthusiast. Using an epoxy primer for cars is the solution. Regular urethane 2K body primer can create a big problem for the DIY user. Its purpose is to act as a type of bonding agent between metal and topcoat — not to provide anti-corrosion protection. The result is that car body panels can show signs of rust within a week or two of applying a urethane primer. The same is true of single pack aerosol primers, which are also often porous.
This post may contain affiliate links. We may earn a small commission from purchases made through them, at no additional cost to you. Maybe you are thinking about spraying your car for a new look? You might want to discover if this is at all possible for a first-time do-it-yourself enthusiast.
Primer is the most loved and feared word in the automotive do it yourself lexicon. Primer is paint, but not in the way that paint is paint. Primer is paint only because it goes on the car and does have some tone of color.