10 Best Brick Water Sealer 2025 in the United States

The LastiSeal Brick & Concrete Sealer is a penetrating sealer designed to waterproof and strengthen a variety of surfaces like brick, concrete, pavers, and porous stones. One of its major strengths is its long-lasting protection, offering a 15-year waterproofing warranty, which is significantly longer than other types of sealers. This makes it very durable, ideal for those looking to extend the life of their masonry surfaces.

The sealer penetrates deeply into the material, curing hard inside the pores, which not only seals but also strengthens the surface, making it an excellent choice for crumbling brick and dusty concrete. Another advantage is its invisible protection; it doesn’t leave a film or coating and retains the natural appearance of the surface with a flat, matte finish. This ensures it won't chip, peel, or fade over time.

The product is also water-based, non-toxic, and eco-friendly, making it safe for people, plants, and pets both indoors and outdoors. On the downside, the product is somewhat heavy at 45 pounds, which might make it cumbersome to handle for some users. This product is best suited for homeowners or professionals looking for a durable and eco-friendly sealer that provides a natural finish without gloss.

The Armor SX5000 WB is a high-quality, water-based sealer designed for protecting a range of surfaces such as concrete, brick, and natural stone. One of its standout features is its ability to significantly reduce water absorption by up to 95%, which helps prevent damage from cracks and stains over time. The professional-grade Silane-Siloxane formula is particularly beneficial for both interior and exterior applications, providing a durable barrier that lasts between 7 to 10 years. Furthermore, it maintains the original look and feel of the surfaces it protects, which is a major plus for homeowners looking to preserve their aesthetics.

Ease of application is another strength; it's ready to use, allowing for straightforward application with a pump sprayer, and clean-up is hassle-free thanks to its water-based formula with zero VOCs and no odor. This makes it suitable for DIY enthusiasts who may not have a lot of experience with sealers.

There are a few considerations to keep in mind. While it provides solid protection, the initial preparation of the surfaces is crucial for the best results, requiring proper cleaning to ensure effectiveness. Additionally, while the 5-gallon size is great for larger projects, it may be more than what some users need, which could lead to waste if they only have a small area to treat.

The Siloxa-Tek 8500 Ultra Concentrate is a penetrating concrete sealer that is a strong contender in the brick-water-sealer category. As a water-based silane/siloxane solution, it provides effective water and salt repellency without altering the appearance of your surfaces, making it an attractive choice for those who want to maintain the natural look of their concrete, brick, masonry, or pavers. Its non-film-forming characteristics ensure that it won't peel, flake, or delaminate over time, adding to its durability.

The product's durability is further enhanced by its resistance to surface damage from chlorides and deicing salts, an essential feature for environments exposed to freeze-thaw cycles. Its UV stability means it won't degrade under sunlight, making it reliable for outdoor applications. The high concentration of active ingredients promises long-lasting protection, requiring reapplication only every few years, depending on usage and exposure.

Ease of application is another strength; it can be applied using a sprayer, roller, or brush, making it accessible for both DIY projects and professional use. It covers up to 250 square feet per gallon, providing a good balance between coverage and cost-effectiveness. The breathable nature of this sealer prevents moisture build-up underneath the surface, helping to preserve the structural integrity of the treated material. Potential users should consider that while it offers excellent protection against water and salts, its performance in other specific scenarios, like oil resistance, isn't highlighted. Additionally, while it claims a non-slick surface, care must be taken during application to maintain safety, particularly in high-traffic areas. The Siloxa-Tek 8500 is well-suited for residential and commercial projects needing a robust, long-lasting sealer that keeps surfaces looking natural while providing effective protection from the elements.