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.
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer.
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