Flex Seal Liquid Rubber Sealant Coating 32 fl. oz. White

Transform cracks, holes and leaky seams into a seamless, flexible rubber barrier with Flex Seal Liquid Rubber Sealant. This 32 oz. white formula starts as a thick liquid that penetrates surfaces, then cures to a durable, watertight coating. Perfect for indoor or outdoor projects—from roof and gutter repairs to pond liners and basement foundations—Flex Seal’s non‐toxic, non‐hazardous formula makes it safe around plants, pets and wildlife.

Whether you brush, roll, dip or pour, Flex Seal adapts to your application style and substrate. Its superior adhesion and flexibility resist rain, snow, UV rays and temperature extremes, ensuring a long‐lasting barrier against corrosion, rust and moisture intrusion. Ideal for DIY enthusiasts, homeowners and professionals alike, this sealant delivers professional-grade results without professional complexity.

Key Features

• Multi-Application Versatility: Brush, roll, dip or pour to suit any repair or coating need
• Crack-Sealing Performance: Seeps into fissures to form a watertight, weatherproof seal
• Weather Resistance: Remains flexible and stable under extreme heat, cold, rain, snow and UV exposure
• Durable, Non-Slip Barrier: Dries to a breathable rubber coating that prevents rust, corrosion and slips
• Moisture & Air Blocker: Stops air, water and moisture infiltration for a truly waterproof finish
• Easy Cleanup: Wipe away drips and spills with a dry cloth or mineral spirits before curing
• Safe for Wildlife & Aquatic Use: Non-toxic formula is pond* and aquarium-safe once fully cured

⚠️ WARNING: This product can expose you to chemicals, including Toluene, which is known to the State of California to cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.