SEALS OUT WATER; AIR AND MOISTURE: Flexible; rubberized coating seals out water; air and moisture to stop and prevent leaksEASY 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 sealTEMPERATURE AND UV RESISTANT: When dried; the rubberized coating is temperature and UV resistant resulting in lasting repairsPAINTABLE: Works with both latex and oil based paint; When coating with oil based paint; use a primer first before paintingGREAT 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.