Gorilla Waterproof Patch & Seal Liquid Rubber Sealant, Black, 32oz (Pack of 1)

SEALS OUT WATER, AIR AND MOISTURE: Flexible, rubberized coating seals out water, air and moisture to stop and prevent leaks EASY TO APPLY: It can be applied by brush, roll, trowel, dip or pouring.

Once applied, the self leveling formula smoothly covers small gaps and cracks ensuring a watertight seal TEMPERATURE AND UV RESISTANT: When dried, the rubberized coating is temperature and UV resistant resulting in lasting repairs PAINTABLE: Works with both latex and oil based paint; When coating with oil based paint, use a primer first before painting GREAT FOR: Roofs, Gutters, Skylights, Flashing, Chimneys*, PVC Pipe Joints, Windows, RVs, DIY Projects and More! *For exterior use only.

Not intended for inside of firebox or chimney stack.