86218 Eternabond WebSeal Tape (Hempel 62ZJB) is used to seal roof joints, seams and tears, flashings, copings, skylights, gutters, etc. Perfect for repairing and restoring roofs on mobile homes and RVs. Extremely flexible, with no memory, so WebSeal conforms to virtually any shape without springing back. WebSeal also seals to itself so it can be cut and folded around an object, as if wrapping a present. WebSeal permanently bonds to a wide range of surfaces including difficult roof materials such as EPDM, TPO, CSPE/Hypalon, most PVC, CPE , SBS, APP modifies, asphalt BURs, coal tar BURs, plus all metal roofs, tiles, shingle, aluminum, galvanized steel, gypsum board, wood, polyethylene, propylene, polystyrene, fiberglass, brick, concrete, masonry, OSB, etc.