How To Caulk Trim Nail Holes. Fortunately, filling in nail holes in trim is a simple process. Dry the area thoroughly with a second clean rag.
In this video, using a 4 inch spatula/taping knife, a caulking gun, clear caulking, white caulking, dry dex spackling compound, and bondo glazing putty, i sh. Use your finger to press the spackle into the hole, then smooth the surface of the wall with your hand. If the two dont mix well, you can add a few drops of water.