Formulated with MaxFlex technology. Water resistant in 2 hours. Won't crack or shrink and provides excellent adhesion, flexibility, and durability for a waterproof seal. Adheres to wood, plaster, brick, metal, concrete, glass, stone, vinyl, masonry, tile,EIFS, Stucco, aluminum and PVC. Use on lap joints, rain spouts, vents and flashings. All-weather, sub-zero application.