Flex Paste is a highly adhesive rubberized paste that effectively adheres to surfaces, allowing it to fill and seal large gaps, cracks, and holes instantly. After it dries, Flex Paste creates a durable and flexible rubberized coating that provides a watertight seal, preventing the penetration of air, water, and moisture. With its versatile application, Flex Paste can be used on a wide range of surfaces and objects, ensuring long-lasting protection against air, water, and moisture damage.