509 ALL-WEATHER MODIFIED MASTIC

509 ALL-WEATHER MODIFIED MASTIC is a rubber-modified mastic that readily adheres to all prepared surfaces wet or dry. 509 ALL-WEATHER MODIFIED MASTIC formulation is designed for repairing leaks, cracked spots, holes in shingles, concrete, and steel or metal roofs while exhibiting wet surface adhesion. 509 ALL-WEATHER MODIFIED MASTIC can be used on all flashings, around skylights and gutters, and in all crevices. 509 ALL-WEATHER MODIFIED MASTIC is ready to use and can be applied with a trowel, knife, or gloved hand. 509 ALL-WEATHER MODIFIED MASTIC is a mixed-homogeneous blend of high-grade fibers, select asphalt, minerals, plasticizers and aromatic hydrocarbons. 509 ALL-WEATHER MODIFIED MASTIC will not sag, slip or mudcrack, and will remain highly resilient and durable through all seasons.