Before you start painting, make sure to thoroughly clean and prep your countertops. Use a degreaser to remove any particles or grime, and gently sand the top to ensure proper adhesion. It Is In Addition Crucial To protect your surrounding areas with painter's tape as well as drop cloths to avoid any accidental spills.Before you begin painting, make sure to properly clean and prep your countertops. Remove any debris or grease buildup, as well as sand straight down any rough areas towards ensure a smooth surface for painting. You may also need to apply a primer, depending on the type of paint you choose.