Film-forming sealants, whether epoxy or acrylic, are most often used for interior floors. Epoxy sealants for concrete are the most durable, making them ideal for sealing garage floors and high-traffic retail environments. Softer acrylic sealants, which require a sacrificial floor wax, are more affordable and popular for residential concrete floors, including basements. When working indoors, it is safest to apply a water-based sealant, since they do not contain the harmful vapors of volatile organic compounds.
Applying the best waterproofing sealant for concrete will protect the integrity and aesthetics of concrete and extend its lifespan. The best waterproof seal for concrete cracks helps maintain a beautiful and durable concrete surface for years. The best waterproof sealant for concrete should effectively protect against moisture, chemicals, oil, salt, grease, alkaline and silica (ASR) reactions, and exposure to the elements. It is a waterproofing, elastomeric, thermoplastic concrete sealant with a patented synthetic rubber coating.
Stretch Flex (Below-Grade) provides external waterproofing of concrete, CMU, precast concrete foundations and other hydropositive lateral structural surfaces. Professional quality sealants can be ordered online through specialty companies or can be purchased at a local concrete supply store.