A black asphalt emulsion (water base) waterproofing compound used with the SWEPCO Flex•Shield® line of products for a variety of roof sealing, patching and flashing jobs on both old and new roofs. Its economical emulsion formulation eliminates the pollution associated with solvent based compounds, makes application easy, fast and simple and saves time and labor. Applied with a trowel or glove. Use with Heavy Duty Patching Fabric for repair and protection of flashings and other high stress areas.