KILZ Original blocks most stains including water, smoke, tannin, ink, pencil, felt marker and grease, and seals pet and smoke odors. Use on interior surfaces including wood, drywall, plaster, paneling, wallpaper, masonry, brick, painted metal and properly prepared glossy surfaces. KILZ Original is not recommended on flooring. It's an interior oil-based primer that tackles tuff stains. For best results, use when substrate and air temperatures are between 35?F (2?C) and 90?F (32?C). Aerosol spray can. Masterchem Industries LLC