Paint In 1925, Martin Senour Automotive Finishes became the exclusive supplier of automotive refinish product s to the National Automotive Parts Association (NAPA). Martin Senour provides a complete line of advanced technology paint and coatings systems for automotive refinishing, fleet refinishing, and manufacturing customers. A system approach to great finish. All our systems help ensure your success by having a complete line of undercoats and topcoats designed specifically for the system. Only available at NAPA Shaba