Black Jack Non-Fibered Liquid Asphalt Roof Coating is designed for the resaturation and preservation of most types of composition, built-up, smooth and granulated roll roofing. Not for use on walking surfaces, shingle roofs, rubber membranes, and EPDM roofing systems. Also recommended as a primer on dried-out asphalt roofing surfaces and on cured concrete decks prior to the application of fibered asphalt roof coating. Use it to coat pipes, gutters, spouts, and other structural iron, above or below grade, for protection against rust and water damage. Exterior use only.