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

Bring ultimate protection and flexibility to your sealing projects with Flex Seal’s premium liquid rubber formula. This 32-ounce (1 quart) black sealant brushes, rolls, dips, or pours onto virtually any surface, creating an impenetrable, weatherproof barrier that flexes with temperature changes. Whether you’re tackling roof leaks, repairing gutters, waterproofing outdoor fixtures, or adding a grippy coating to tools and handles, Flex Seal delivers a durable, watertight finish that stands up to the elements year after year.

Ideal for DIY enthusiasts, homeowners, and professional tradespeople, this versatile rubberized coating:

• Forms a seamless, flexible membrane that seals out water, air, and moisture
• Resists cracking, peeling, and UV damage in harsh heat or freezing cold
• Prevents rust and corrosion on metal surfaces
• Is non-flammable, zero-VOC, and non-toxic once fully cured

Give your project the lasting protection it deserves—no more drips, leaks, or costly touch-ups.

Key Features

• Multi-application versatility: brush, roll, dip, or pour for precise coverage
• Strong, rubberized coating dries flexible and watertight
• Wide temperature tolerance: −80 °F to 350 °F (best applied between 32 °F–120 °F)
• Covers approximately 40 linear feet per quart (1"-wide bead)
• Safe around plants and animals when cured; NSF-approved, non-hazardous, non-flammable
• Easy cleanup with a dry cloth or mineral spirits

⚠️ 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.