Flex Seal 14-fl oz Black Aerosol Spray Waterproof Rubberized CoatingFlex Seal 14 fl oz (Color), liquid rubber coating spray that turns into a durable waterproof barrier. It's easy to use and comes in a portable aerosol spray can. Flex Seal sprays out as a liquid, seeping into cracks and holes, and then dries to a rubberized coating. Flex Seal stops vibrations and deadens noise. Flex Seal seals out water, air, moisture, preventing rust and corrosion. The easy way to coat, seal, protect, and stop leaks fast Seeps into