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With the nail holes filled and caulk applied, the molding is ready for paint. Using a paintbrush, apply the first coat of white paint to all molding surfaces, ensuring full coverage over the filled holes and caulked seams. Allow the first coat to dry according to manufacturer instructions. Apply a second coat of paint for a durable and uniform finish. Additionally, paint the top edge of the baseboards where they meet the wall, especially if caulk was applied there, to blend seamlessly with the newly installed molding and freshen the entire area.