Best waterproof concrete sealants

Our top 3 picks

• 1

  

  

  Check Price

  

  Check Price

  Armor SX5000 WB Natural-Look Penetrating Water-Based Silane Siloxane Concrete Sealer for Concrete, Brick, Pavers, and Natural Stone - 5 Gallon

  The 5-Gal. SX5000 WB DOT Approved Water Based Silane Siloxane Penetrating Sealer by Foundation Armor offers long-lasting protection for concrete, brick, pavers, and natural stone. Approved by the Department of Transportation, this water-based sealer provides up to 10 years of performance while maintaining the natural look of your surfaces. Its versatile application makes it suitable for both interior and exterior use, on vertical and horizontal surfaces, making it ideal for patios, driveways, and even shoreline rocks. Customers appreciate its easy application and the effective water beading it provides, even on previously neglected surfaces. With minimal odor and easy cleanup, this sealer is a practical choice for those looking to protect their surfaces from water damage, mold, and staining. Whether you’re dealing with harsh weather conditions or simply want to preserve the beauty of your surfaces, the SX5000 WB delivers reliable performance and peace of mind.
• 2

  

  

  Check Price

  Liquid Rubber Basement and Foundation Repair Sealant - Waterproof Concrete Sealer & Crack Filler - Flexible Coating for Indoor & Outdoor Use - Waterproofing Paint - Black, 1 Gallon

  The Liquid Rubber Concrete Foundation and Basement Sealant is a versatile waterproof coating designed to protect a variety of surfaces, including foundations, wood, and metal. Its highly flexible membrane prevents adhesion failure, ensuring long-lasting protection without cracks or tears. Ideal for both indoor and outdoor applications, this sealant is environmentally friendly, containing no harmful solvents or VOCs, making it safe for use around humans and pets. Customers frequently praise its easy application, likening its consistency to chocolate pudding, which allows for smooth use with brushes or sprayers. This product is particularly effective for waterproofing basements or repairing outdoor wooden surfaces, providing a durable solution against leaks and water damage. Despite its effectiveness, some users wish for smaller packaging options, as a single gallon can cover more than typical small repairs require. Overall, the Liquid Rubber Sealant stands out for its ease of use, safety, and adaptability to various sealing needs.
• 3

  58% Off

  

  

  Check Price

  

  Check Price

  

  Check Price

  DAPConcrete Watertight Filler and Sealent 10.1 ounce Gray

  The Dap Concrete & Masonry Filler & Sealant is a versatile solution for sealing and repairing concrete surfaces. With a 10.1 oz. tube, this gray sealant is designed for both interior and exterior applications, resisting gas, oil, grease, and salt. It is paintable and easy to clean with water, making it user-friendly for various projects. Ideal for small repairs, it effectively fills gaps and cracks, providing a reliable seal against moisture and weather conditions. Customers consistently praise its elasticity and durability, noting its performance in outdoor settings over extended periods. Whether you're dealing with a leaky basement corner or hairline cracks in a garage floor, this sealant proves to be a dependable choice. Its thicker consistency allows for better gap filling compared to some thinner alternatives, ensuring a robust and lasting repair. Overall, the Dap Concrete & Masonry Filler & Sealant offers practical solutions for maintaining and protecting your concrete surfaces.