Flex Seal Rubber Sealant Coating 14 oz. Black

Transform and protect almost any surface with Flex Seal’s professional-grade pourable rubber sealant. This 14 oz. liquid formula seeps into cracks and holes, then cures into a seamless, flexible, waterproof membrane. Ideal for roofs, gutters, RVs, foundations, pipes and more, it’s the easy way to stop leaks fast and fortify surfaces against weathering, corrosion and wear.

Whether you’re tackling home repairs, automotive maintenance or DIY projects, this brush-on coating adheres to wood, metal, concrete, masonry, fiberglass and many plastics. Once fully cured, it remains pliable through temperature extremes—no sagging in summer heat or cracking in winter cold—while resisting UV rays and moisture for years of reliable performance.

Key Features

• Easy-to-use, portable aerosol spray
• Sprays as a liquid and dries into a strong, rubberized coating
• Remains flexible and pliable for years
• Won’t sag or drip in high heat
• Resists cracking or peeling in cold temperatures
• Seals leaks, stops vibrations, and deadens noise
• Protects surfaces from corrosion
• Adheres to wet or dry surfaces
• Paintable after full cure

⚠️ WARNING: This product can expose you to chemicals including Carbon black, Benzene (ethyl), Quartz (SiO2), Benzene, (1-methylethyl), and Benzene which are known to the State of California to cause cancer, and Benzene (methyl) and Benzene, which are known to the State of California to cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.