Painting Log Cabin Interior Walls . Stain has a lot of advantages over paint for. An ideal option for interior painting is the combination of primer and first coat. Whitewashed Lake Cabin by Jessica Jubelirer Design HomeAdore Cabin from www.pinterest.com We have torn those down to expose the logs. Stain has a lot of advantages over paint for. As the other side of the log is exposed to the exterior, the interior walls should be treated with exterior paint for the best results.