Flex Seal 16 oz. Black Rubberized Coating

Flex Seal liquid seeps into cracks and holes to seal out air, water, and moisture. It dries to a watertight, flexible rubberized coating that is completely waterproof, weatherproof, and resistant to mildew, chemicals, and UV degradation. Ideal for a wide variety of maintenance and repair projects, this liquid sealant forms a durable, breathable, and non-slip protective barrier that prevents rust and corrosion. It is non-hazardous, non-flammable, and safe to use around plants and animals once fully cured.