Cabinets and drawers, especially those made out of wooden material, can start looking a bit distressed after a few years if not maintained regularly. If you have young children or pets, then there’s a good chance that the lower cabinets in your kitchen have some visible nicks and scratches. The thing is that you cannot hide these minor imperfections and dents with a coat of paint.
The best way to fix this problem is by using a sanding paper, though make sure not to go overboard and ruin the surface.
Similarly, if your cabinets were previously stained or have a thick layer of paint covering them, it’s always better to sand and buff them before applying the primer.