Finishing the underside of kitchen cabinets is an often-overlooked but important task that can enhance the overall look of your kitchen. Start by considering the cabinet material (wood, laminate, etc.) and choosing an appropriate finish type such as paint, stain, or varnish. After preparing the surface by cleaning, sanding, and repairing any damage, apply a primer for better adhesion.... https://kbdkitchensbydesign.com/finishing-underside-of-kitchen-cabinets/