We Use CookiesWe use cookies to enhance the security, performance, functionality and for analytical and promotional activities. By continuing to browse this site you are agreeing to our privacy policy

10 Best Basement Concrete Sealers 2025 in the United States

How do we rank products for you?

Our technology thoroughly searches through the online shopping world, reviewing hundreds of sites. We then process and analyze this information, updating in real-time to bring you the latest top-rated products. This way, you always get the best and most current options available.

headphones-stars

Our Top Picks

#1

Winner

Ames Maximum Stretch - Waterproof Sealant Membrane - Perfect For Roofing, Repairs, Concrete, EPDM & Wood - Liquid Rubber Sealer - Up To 650% Elastic - Made in USA, White, 4.6 Gallon (Pack of 1)

Rating
9.9
Chosen by1,249
Water Resistance
Durability
Ease of Application

Most important from
1263 reviews

Water Resistance
Great durability and worth the price; no issues with water resistance and easy application.
Durability
Great durability and worth the price; no issues with water resistance and easy application.
Ease of Application
Great durability and worth the price; no issues with water resistance and easy application.

The Ames Maximum Stretch sealant is a versatile liquid rubber sealer that can be used on a variety of materials including concrete, wood, metal, and rubber. One of its standout features is its high elasticity, boasting up to 650% elongation which helps it resist cracking, chipping, and peeling. This makes it highly durable and reliable for long-term use. It adheres well to different surfaces and is designed for low-slope roof maintenance, making it useful for a range of applications beyond just basement concrete sealing, such as for roofing and repairs.

Its finish is a bright white with 88% light reflectivity, which can help reduce surface temperatures and lower cooling costs, making it more energy-efficient. Application is flexible as it can be brushed, rolled, or sprayed on, providing ease of use depending on the user's preference or the job requirement. Additionally, it is non-toxic, eco-friendly, and has low VOC content, making it a safer option for both users and the environment.

However, it is worth noting that the product's size and weight (4.6 gallons and 49.6 pounds) make it relatively bulky, which might be cumbersome for smaller projects or for those who need to handle it alone. Given its specific design for low-slope roof maintenance, the product might be overkill for simpler basement sealing tasks. Nonetheless, its multi-surface compatibility and robust performance make it a strong candidate for more comprehensive sealing needs.

Rating
9.9
Chosen by1,249
Water Resistance
Durability
Ease of Application

Most important from
1263 reviews

Water Resistance
Great durability and worth the price; no issues with water resistance and easy application.
Durability
Great durability and worth the price; no issues with water resistance and easy application.
Ease of Application
Great durability and worth the price; no issues with water resistance and easy application.
#2

Liquid Rubber Basement and Foundation Repair Sealant - Waterproof Concrete Sealer & Crack Filler - Flexible Coating for Indoor & Outdoor Use - Waterproofing Paint - Black, 5 Gallon

Rating
9.8
Ease of Application
Durability

Most important from
3053 reviews

Ease of Application
The Liquid Rubber Basement and Foundation Repair Sealant is hailed as one of the best products on the market for its quality and ease of application.
Durability
The product promises durability, with one user confidently stating that their coated fence posts may never rot.

The Liquid Rubber Basement and Foundation Repair Sealant is a versatile and professional-grade product designed for both indoor and outdoor use. Its main strength lies in its superior flexibility, with a 900% elongation that effectively prevents leaks and water damage. This makes it highly effective for basement waterproofing and foundation leak repair. Additionally, the sealant offers excellent adhesion to a variety of surfaces including concrete, masonry, wood, and metal, making it suitable for numerous DIY projects.

The water resistance and durability are commendable, as the product creates a permanent waterproof membrane that maintains flexibility across different temperatures, preventing future cracks and damage. The product is easy to apply, requiring no mixing and can be applied with a brush, roller, or professional sprayer. However, it does require multiple coats for complete protection, which may be time-consuming. The finish is protective but can be tacky when cured, meaning it's not suitable for walking surfaces.

On the plus side, the water-based formula contains zero VOCs, making it safe for indoor use. The product also includes detailed application steps for achieving a watertight system. Despite its strengths, the need for multiple coats and its unsuitability for walking surfaces can be seen as minor drawbacks. This product is a strong candidate for those needing a reliable and flexible concrete sealer for basement and foundation repair.

Rating
9.8
Ease of Application
Durability

Most important from
3053 reviews

Ease of Application
The Liquid Rubber Basement and Foundation Repair Sealant is hailed as one of the best products on the market for its quality and ease of application.
Durability
The product promises durability, with one user confidently stating that their coated fence posts may never rot.
#3

Sika - Sikacryl - Gray - Ready-Mix Concrete Patch - for Repairing spalls and Cracks in Concrete and Masonry - Textured - 1 qt

Rating
9.6
Water Resistance
Ease of Application
Finish

Most important from
4013 reviews

Water Resistance
Remarkably easy to use with a surprisingly effective waterproof effect.
Ease of Application
Remarkably easy to use with a surprisingly effective waterproof effect.
Finish
A game-changer for concrete repair, drying in just 24 hours with an impressive finish.

The Sika Sikacryl Gray Ready-Mix Concrete Patch provides a practical solution for repairing cracks and spalls in concrete and masonry, making it ideal for basement concrete sealing tasks. As an acrylic-based patch, it is easy to apply with minimal preparation needed—just use a putty knife or trowel. With its pre-mixed formulation, users don't have to worry about mixing, and it sets quickly within a few hours, fully curing in about a day. Cleanup is straightforward with water, eliminating the need for special cleaners. The product adheres to VOC regulations, contributing to better air quality during application.

Designed to be tough and durable, this concrete patch resists shrinking and cracking, ensuring long-lasting repairs. However, its water resistance is not specifically highlighted, which might be a consideration for basement usage where moisture can be an issue. The textured finish helps it blend seamlessly with existing concrete surfaces, enhancing the appearance. At 1 quart, it is suitable for small to medium repair tasks but may not be economical for larger projects.

The product has received positive reviews with a 4.4-star rating from users, indicating general satisfaction with its performance. This concrete patch is best suited for homeowners and professionals looking for an easy-to-use, durable solution for minor concrete repairs with a textured finish and low environmental impact.

Rating
9.6
Water Resistance
Ease of Application
Finish

Most important from
4013 reviews

Water Resistance
Remarkably easy to use with a surprisingly effective waterproof effect.
Ease of Application
Remarkably easy to use with a surprisingly effective waterproof effect.
Finish
A game-changer for concrete repair, drying in just 24 hours with an impressive finish.

Buying Guide for the Best Basement Concrete Sealers

Choosing the right basement concrete sealer is crucial to protect your basement from moisture, mold, and other potential damage. A good sealer will extend the life of your concrete, enhance its appearance, and provide a barrier against water and other elements. When selecting a sealer, consider the specific needs of your basement, such as the level of moisture exposure, the type of finish you desire, and the ease of application. Understanding the key specifications will help you make an informed decision and ensure you pick the best product for your needs.
Type of SealerThere are several types of concrete sealers, including penetrating sealers, acrylic sealers, epoxy sealers, and polyurethane sealers. Penetrating sealers are ideal for protecting against moisture and are often used in basements. Acrylic sealers provide a thin, protective film and are good for enhancing the appearance of the concrete. Epoxy and polyurethane sealers offer a thicker, more durable coating and are suitable for high-traffic areas. Choose a sealer based on the specific needs of your basement, such as moisture protection or aesthetic enhancement.
Water ResistanceWater resistance is a critical factor for basement concrete sealers, as basements are prone to moisture and water infiltration. Sealers with high water resistance will prevent water from penetrating the concrete, reducing the risk of mold and mildew growth. Look for products that specifically mention water resistance or waterproofing capabilities. If your basement is particularly damp or prone to flooding, opt for a sealer with superior water resistance properties.
DurabilityDurability refers to how well the sealer can withstand wear and tear over time. A durable sealer will provide long-lasting protection and reduce the need for frequent reapplication. Consider the level of foot traffic and potential for physical impact in your basement when choosing a sealer. For high-traffic areas, epoxy or polyurethane sealers are recommended due to their robust nature. For areas with less traffic, a penetrating or acrylic sealer may suffice.
Ease of ApplicationThe ease of application can vary significantly between different types of sealers. Some sealers require multiple coats and precise application techniques, while others are more straightforward and user-friendly. If you plan to apply the sealer yourself, look for products that are easy to apply and come with clear instructions. Water-based sealers are generally easier to work with and clean up, while solvent-based sealers may require more careful handling and ventilation.
FinishThe finish of the sealer can affect the appearance of your basement floor. Sealers can provide a range of finishes, from matte to high-gloss. A matte finish offers a natural look, while a high-gloss finish can enhance the color and texture of the concrete, giving it a polished appearance. Consider the aesthetic you want to achieve in your basement when selecting a sealer. Additionally, some finishes may offer better slip resistance, which can be important for safety in certain areas.
VOC ContentVOC (Volatile Organic Compounds) content refers to the amount of harmful chemicals released into the air during application and drying. Low-VOC or VOC-free sealers are more environmentally friendly and safer for indoor use, as they reduce the risk of respiratory issues and other health concerns. If you are sensitive to chemicals or concerned about indoor air quality, opt for a sealer with low or no VOC content. These products are especially important in enclosed spaces like basements.

FAQ

Most Popular Categories Right Now