Lucas #5400 is a high-performance rubberized roofing sealant for repairs. Adheres to most surfaces, including asphalt, shingles, modified bitumen, metal, Kynar, wood, concrete, tile, and masonry.
Manufactured from UV stable SEBS thermoplastic elastomers, will not crack or harden over time, and can be applied even in cold weather. Available in brush, trowel, and caulk grades.