Gorilla 109404 Patch and Seal Rubberized Sealant, Paste, Black, 1 lb

Gorilla waterproof patch and seal paste is a thick, flexible rubberized sealant paste that clings to multiple surfaces to instantly fill large gaps, cracks and holes. Once applied, the high-strength formula smoothly covers the surface tightly sealing out water, air and moisture, resulting in lasting repairs.