For overhead application. It’s great for blocking ceiling stains like water, smoke and grease. Tinted to match most aged/acoustical ceilings. Fast and easy vertical spray. Seals pet and smoke odors. Stains: water, smoke, tannin, ink, pencil, felt-marker and grease. Odors: pet, smoke. Use on: wood, drywall, plaster, paneling, wallpaper, masonry, brick and painted metal.