Flex Seal Liquid Max , 2.5 Gallon, Black Sealants

Flex Seal Max Liquid Rubber Sealant Coating with even more coverage! Flex Seal Liquid is a thick rubberized liquid that you can brush, roll, dip or pour. It starts out as a thick liquid and dries to a strong, flexible, watertight, rubberized coating that protects and helps stop leaks fast.