DAP Butyl-Flex 18188 Gutter and Flashing Sealant, Gray, Paste, 10.1 fl-oz Cartridge

Butyl rubber formula provides a durable, flexible, watertight seal for gutters, drain spouts, lap joints, flashings, roof vents, aluminum siding and other metal joints. Stands up to weather and temperature extremes.

Item Features

• Guns easily

• Cures with minimal shrinkage

• Prevents leaks and moisture damage by maintaining a durable seal that resists heat, freezing temperatures, ultraviolet light and intermittent water immersion

• Low heat and electrical conductivity

• Non-staining and will not craze or harm most plastic materials