Flex Seal Flex Tape Rubberized Waterproof Tape 4" x 5' Black

Experience the ultimate all-weather repair solution with Flex Tape Black. This heavy-duty, rubberized waterproof tape is engineered to patch, bond, seal, and repair virtually anything. Its thick, flexible adhesive backing conforms to any shape or surface—delivering a rock-solid seal that only grows stronger with time and pressure. Whether you’re fixing leaks on boats, RVs, pipes or making quick household repairs, Flex Tape stands up to the extremes so you don’t have to worry about failures.

Ideal for indoor and outdoor use, this specialty tape resists UV rays, extreme temperatures, and harsh weather conditions. Apply it hot or cold, wet or dry—even underwater—to stop leaks, seal cracks, and protect surfaces from air and moisture intrusion.

Key Features

• Thick, flexible, rubberized adhesive backing
• Conforms to odd shapes and uneven surfaces
• Seals out water, air and moisture
• Ideal for patching large holes, cracks, gaps and tears
• Can be applied hot or cold, wet or dry—even underwater
• Withstands temperatures from –70 °F to 200 °F and extreme weather
• UV resistant for long-term outdoor durability
• Environmentally friendly and VOC-free
• Dimensions: 4" wide × 5 ft. long