Best Waterproof Concrete Sealers of 2026

Rainguard Water Sealers Concrete Sealer is a premium-grade water sealer for concrete that protects, restores, and extends the life of your home. It is a water-based silane/siloxane water repellent that inhibits moisture damage, and creates a long-lasting filmless hydrophobic barrier against weathering, salt, dirt, freezing temperatures, UV light, wind-driven rain, and other damaging elements. Rainguard Concrete Sealer is ideal for all vertical and horizontal concrete surfaces including garage and basement floors, stamped concrete, countertops, driveways, sidewalks, walls, and patios. It comes in a premixed formulation, ready to use right out of the bottle. It is easy to apply and safe to use indoors or outdoors.

The Liquid Rubber Waterproof Sealant is a flexible and durable solution designed to protect your basement and foundation from water damage. Its strong rubber membrane stretches to prevent leaks, making it ideal for areas prone to moisture like basements, shower liners, and planter boxes. Unlike regular concrete paints, this sealant creates a complete waterproof barrier that stops active leaks and works well with self-leveling concrete. Plus, it remains flexible in all weather conditions, so it won’t crack or break over time. You can apply it on various surfaces such as concrete, wood, metal, and masonry, making it perfect for many DIY home repair projects.

Gorilla Waterproof Patch & Seal Spray is a flexible, rubberized coating that seals out water, air, and moisture to stop or prevent leaks. Its self-leveling formula smoothly covers small gaps and cracks, ensuring a watertight seal. The spray is temperature and UV resistant, and can be used on various surfaces, including roofs, gutters, skylights, flashing, chimneys, PVC pipe joints, windows, RVs, and more. Additionally, it works with both latex and oil-based paint and can be painted over once dry.

The Liquid Rubber Waterproof Sealant is a flexible, professional-grade coating designed to protect your basement and foundation from leaks and water damage. It creates a strong, waterproof barrier that stretches up to nine times its size, ensuring long-lasting protection. This sealant goes beyond basic concrete paint by effectively sealing active leaks and moisture, making it ideal for both indoor and outdoor use. It also works as a crack filler, staying flexible in any weather to prevent new damage. Plus, it sticks well to various surfaces like concrete, wood, and metal, making your DIY waterproofing projects easier and more reliable.

MasonryDefender Sealer is a clear, water-based sealer that provides waterproofing protection for all exterior, porous masonry and concrete surfaces such as concrete, brick, natural stone, sandstone, limestone, cultured stone, and granite. It protects surfaces from water damage and freeze/thaw damage, and it is 100% breathable, which prevents pitting, cracking, and delaminating. The sealer is easy to clean up with soap and water and has a low odor. MasonryDefender Sealer comes with a five-year warranty for vertical concrete and masonry surfaces, making it a reliable and long-lasting option for your sealing needs.

Protect your outdoor hard surfaces with BD Stoneworks Sealer. This commercial-grade impregnating sealer is a water-based, silane/siloxane waterproof sealant that reduces water and moisture intrusion, extending the lifespan of your concrete, cement, grout, stucco, split-faced block, brick, pavers, and natural stone surfaces. It fights against efflorescence, spalling, and cracks. The sealer repels water, fights salt, and prevents cracking, making it ideal for areas exposed to snow, ice, salt, rain, salt water, or water from a pool. The water-based formula makes it safer to use and clean up, and it's safer for plants and pets. BD Stoneworks Sealer lasts up to 10 years on some applications, but reapplication every 5-7 years is recommended for best results.

Ames Waterproof Sealant is a versatile solution for your roofing and repair needs. With an impressive 650% elongation, this sealant stretches to prevent cracking and peeling, ensuring long-lasting protection. Its bright white finish reflects 88% of light, which helps to keep surface temperatures down and can lower your cooling costs. This eco-friendly, low VOC product adheres well to various surfaces, including metal and rolled roofs, making it perfect for RVs and low-slope roofs. You can easily apply it by brushing, rolling, or spraying, giving you flexible options for your projects.

The Tufinein Waterproof Sealant is a versatile, water-based coating that creates a clear, durable waterproof barrier for various surfaces. You can use it both indoors and outdoors, making it ideal for protecting roofs, walls, and even garden structures. Its insulating properties keep out moisture and air, ensuring that your items remain safe from the elements. Additionally, applying this sealant is straightforward, whether you choose to brush, roll, or pour it on. With proper application, you can achieve a long-lasting, aesthetically pleasing seal that withstands temperature fluctuations.

Protect your bird bath, cement, concrete, bricks, tiles, and rock with NOON'S UP Waterproof Sealant. This eco-friendly, water-based spray deeply penetrates cracks and holes to provide excellent waterproof protection. Its breathable and flexible coat improves durability and prevents corrosion. You can apply it in any conditions, even on a wet surface or in moist weather. With no additional tools required, all you need is the spray to prepare the surface. The new packaging ensures safe delivery to your doorstep. Don't let water damage ruin your surfaces; use NOON'S UP Waterproof Sealant for long-lasting protection.

The Ames Liquid Rubber is a versatile waterproofer and concrete sealer that weighs 9.25 lbs, making it easy to handle. This product is designed for use on basements and foundations, ensuring that your surfaces remain protected from water damage. Its bright white color not only provides a clean look but also reflects heat, which can be beneficial in certain applications. Manufactured in China, this sealer belongs to the AMES brand, known for quality hardware products. With this liquid rubber, you can achieve peace of mind knowing your surfaces are safeguarded against moisture and potential structural issues.