Rubber Leak Stopper Sealant 1 gal.

Rubber Leak Stopper Sealant is a one-gallon, rubberized roof patch designed to stop leaks instantly on wet or dry surfaces. Its flexible, glossy black formula bonds tightly to metal, rubber, and shingle substrates, creating a durable, seamless barrier against water intrusion. Ideal for emergency repairs and routine maintenance, this all-purpose sealant restores the integrity of gutters, flashings, vents, and low-slope roof areas.

Formulated as a water-based liquid, the Leak Stopper Sealant is low in VOCs and easy to apply with a brush or roller—no heat or special tools required. Once cured, it stretches with thermal movement and resists cracking, ensuring long-lasting protection through fluctuating temperatures.

Key Features

• Rubberized, high-flexibility formulation
• Gloss finish blends with most roofing materials
• Covers up to 7 sq ft per gallon
• Seals leaks on both wet and dry surfaces
• Water-based, low-VOC (< 250 g/L) formula
• Easy brush-on application; no heat or primers needed

⚠️ WARNING: This product can expose you to Bitumens, extracts of steam-refined and air refined known to the State of California to cause cancer. For more information, visit www.P65Warnings.ca.gov.