How do I sand mouldings?
Use a fine grit sanding sponge or at least a 220-grit sandpaper on a sanding block. Always be sure to sand with the grain of the wood. Coarser grits of sandpaper, or going against the grain will tend to leave fine gouges that may be visible through subsequent coats of paint. A very light pass over the nail area will suffice. If you have purchased natural finish mouldings, such as unfinished finger-joint pine, they will require priming before installation. A high quality primer is recommended. Touch sanding with fine grit (220 or higher) sandpaper between each coat is strongly recommended. This light sanding will ensure better bond between the coats, and also give a smoother finish.
