Plus 5 Gal. Deep Penetrating Concrete Sealer for Foundations and Basement Floors

RadonSeal Deep-Penetrating Concrete Sealer seals poured concrete and concrete blocks deeper and tighter than any other sealer on the market. The best basement sealer for your foundation walls and concrete floor against water seepage, vapor transmission and even radon gas. RadonSeal penetrates deep into concrete and reacts, sealing and preserving it permanently. Negative-side hydrostatic water pressure cannot budge it. It reduces basement humidity, prevents musty odors and basement molds. RadonSeal is the only basement sealer backed by a lifetime money-back guarantee against radon. It does not change the surface of the concrete. Treated surfaces remain suitable for paints, adhesives and overlays. Seal your concrete before painting it or installing flooring to avoid trapping moisture. Make sure to seal the basement walls and floor before finishing the basement to avoid water damage. RadonSeal prevents efflorescence and reduces concrete dusting, spalling and cracking. It cannot peel, fade or wear off. Results are permanent, no need for re-application. Safe and easy spray-on application, non-hazardous formulation, water-based sealer with zero VOC's. Trusted by contractors, building owners and DIY homeowners for more than 20-years.