Prep trim molding by heading around the edges where it fulfills the walls with The purpose with the putty knife to open up any cracks there so they are often re-caulked. Also, use the putty knife to scrape off any free, peeling paint to the flat surfaces from the moldings. https://bookmarksknot.com/story10366214/rumored-buzz-on-how-to-prep-cabinet-hardware-for-painting