A professional interior oil base wall finish for use on all interior walls and ceilings including drywall, plaster, masonry, and primed wood. The rich, flat finish reduces the appearance of physical surface imperfections. Ideally suited for textured walls and ceilings. The oil base formula provides stain blocking characteristics on ceilings with minor smoke or water discoloration. Use a stain blocking primer where more severe stain discoloration is present. Ideally suited for commercial work where formal industry quality approvals are required. Approved by the Master Painter's Institute under category # 49.