DAP BUTYL-FLEX 10.1 Oz. Gutter & Flashing Sealant, Aluminum Gray

Butyl rubber formula provides a durable, flexible, watertight seal for gutters, drainspouts, lap joints, flashings, roof vents, aluminum siding, and other metal joints. Stands up to weather and temperature extremes. Meets ASTM Spec. C-1085. 10.1 Oz. cartridge.