16OZ BLK Flex Seal

Introducing the FLEX SEAL® Liquid, a versatile and durable rubberized coating now available at K&b Ace Hardware in Annapolis, MD. This thick liquid product is designed to provide a strong, flexible, and watertight seal that protects surfaces and stops leaks quickly. Whether you are a homeowner or a professional in Annapolis, FLEX SEAL® Liquid offers a reliable solution for sealing and protecting a wide variety of materials against water damage and corrosion.

• Thick rubberized coating: Unlike thin paints, FLEX SEAL® Liquid creates a super thick, flexible barrier that is completely waterproof, ensuring long-lasting protection.


• Multiple application methods: Brush or roll onto large areas for a watertight seal, dip tools directly into the can for a tough, no-slip grip, or pour directly into cracks to stop leaks dead in their tracks.


• Durable and weatherproof: Forms a breathable, weatherproof, non-slip barrier that stays flexible, expanding and contracting with seasonal temperature changes.


• Extreme temperature resistance: Effective in a wide temperature range from minus 80 degrees Fahrenheit to 350 degrees Fahrenheit, maintaining its hold in both extreme heat and cold.


• Corrosion and moisture protection: Blocks out air, water, and moisture to prevent rust and corrosion while creating a watertight seal that lasts for years.


• Safe and environmentally friendly: Mildew and chemical resistant, non-hazardous, non-flammable, safe around plants and animals when fully cured, NSF approved, zero volatile organic compounds, carcinogen-free, and contains no petroleum distillates.


• Wide material compatibility: Works on concrete, glass, brick, stucco, masonry, wood, copper, plastic, tile, fabrics, wires, vinyl, fiberglass, ceramic, porcelain, metal, aluminum, natural stones, foam, asphalt, EIFS, TPO, PVC, EPDM, CSPE, Hypalon polyurethanes, and more.


• Easy cleanup: Excess or spilled product can be cleaned up with a dry cloth or paper towel and mineral spirits.

FLEX SEAL® Liquid is ideal for a variety of projects in Annapolis, including concrete and asphalt repair, foundation repair, preventing basement seepage, weatherizing and sealing out moisture, home and roof repair, RV repair and weatherizing, as well as outdoor ponds and bird baths. Whether you are addressing leaks, protecting surfaces from corrosion, or weatherproofing your property, this product offers a flexible and durable solution that adapts to your needs.



Imagine sealing cracks in your driveway before the rainy season or protecting your outdoor fixtures from harsh weather conditions in Annapolis. FLEX SEAL® Liquid’s ability to expand and contract with temperature changes makes it perfect for maintaining a watertight seal year-round. Professionals and DIY enthusiasts alike will appreciate its versatility and ease of use for both small repairs and large-scale projects.



In summary, the FLEX SEAL® Liquid is an essential product for anyone in Annapolis, MD looking to protect and repair surfaces with a reliable, flexible, and waterproof coating. Available now at K&b Ace Hardware, it offers peace of mind and long-lasting protection against leaks and corrosion in a wide range of applications.