Flex Seal Liquid Rubber Sealant Coating 1 gal. White

Flex Seal Liquid is the ultimate rubberized sealant in a can—pour, brush, roll or dip to create a seamless, flexible barrier wherever leaks or moisture threaten. This thick, white liquid rubber seeps into cracks, holes and gaps, then cures into a durable, watertight coating that stands up to sun, rain, snow and extreme temperatures. Ideal for roof repairs, basements, RVs, trailers, marine applications and countless DIY projects, Flex Seal Liquid bonds to virtually any surface to lock out air, water and corrosion.

Once applied, the fast-drying formula delivers a non-slip, weatherproof finish that remains UV-resistant and chemical-resistant over time. Whether you’re sealing gutters, patching masonry, weatherproofing metal or protecting wood, this one-gallon coating goes on smooth and covers up to 150 sq ft per fill, providing long-lasting protection against the elements.

Key Features

• Liquid rubber in a can—brush, roll, dip or pour for maximum versatility
• Forms a seamless, flexible, watertight barrier that stretches and contracts
• Cures to a non-slip, weatherproof coating resistant to rain, snow, sun, wind and hail
• UV-resistant and chemical-resistant finish helps prevent rust and corrosion
• Covers approximately 150 sq ft per gallon with a smooth white finish
• Bonds to concrete, brick, stucco, wood, metal, plastics, vinyl, fiberglass and more

⚠️ 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.