Karnak #19 Ultra is manufactured to a heavy pliable consistency for ease of application by trowel. Karnak #19 Ultra Flashing Cement is the next generation flashing cement. Scientifically compounded with a selection of rubber reinforced asphalt, mineral fibers, and refined solvents. #19 Ultra provides a durable elastomeric coating of greater strength, excellent adhesion and high resistance to water and weathering. Karnak #19 Ultra is composed of special chemical ingredients which give it a unique water displacement quality (Wet/Dry). Karnak #19 Ultra dries to a tough, flexible, waterproof and corrosion proof rubber coating which gives maximum protection and excellent performance over wide ranges of temperature and weather conditions. Karnak #19 Ultra is available in 3 consistencies: Summer, Semi and Winter. Asbestos Free.