The base molding (two inches high) at an inside corner has about a 1/8" gap at the inner edge (as though both miter angles are a few degrees less than 45 degrees). The mitered ends (along with the rest of the molding) were primed and painted before being nailed in place. What should I use to fill the gap? The choices are wood filler, caulk, and spackling compound. The filler will be painted.
Thanks,
Ray