Product Review
Trusted Since 1997 - RadonSeal offer contractors and homeowners unbiased expertise, unparalleled service, and our industry leading sealers and repair products. RadonSeal Deep-Penetrating Concrete Sealer is formulated to permanently seal poured concrete and concrete blocks. RadonSeal Penetrates into concrete (up to 4"), chemically reacts, and seals the capillaries and pores that make concrete porous. RadonSeal restricts moisture, water vapor, and radon gas infiltration through concrete. Prevents efflorescence, dusting, dampness, and humidity. Use RadonSeal to strengthen deteriorating concrete, harden compromised pours, and prevent pitting & spalling due to freeze-thaw, road salts, and deicing chemicals. ZERO VOCs. Eco-friendly. Safe Use Indoors. RadonSeal PLUS is formulated for concrete blocks, interior concrete > 20 years old; exterior concrete > 3 years old; and concrete with a history of seepage, regardless of age. RadonSeal STANDARD is for interior concrete < 20 years old; and interior concrete < 3 years old. USES: Basement floors, foundation walls, driveways, sidewalks, patios, garage floors, building facades, concrete barriers, and carports. (Note - Polished and other smooth-troweled surfaces may require etching or grinding).
- DEEP-PENETRATING CONCRETE SEALER – RadonSeal Plus penetrates deep into concrete and reacts within the pore structure to seal capillaries, helping reduce water intrusion and moisture vapor transmission through basement floors and foundation walls.
- FOR BASEMENTS & FOUNDATIONS – Helps reduce moisture seepage through concrete floors and walls by penetrating and reacting within the concrete. Ideal for basement floors, foundation walls, slabs, and concrete block exposed to ground moisture.
- LONG-LASTING INTERNAL SEAL – Unlike acrylic or epoxy coatings that sit on the surface, RadonSeal reacts inside the concrete to form a durable internal seal that will not peel, blister, or wear away over time.
- STRENGTHENS & HARDENS CONCRETE – Chemically densifies and reinforces porous or weak concrete, reducing dusting and improving resistance to water intrusion, salts, and freeze-thaw cycles.
- EASY DIY APPLICATION – Apply with a sprayer, roller, or brush. The water-based formula penetrates deeply into the concrete where it reacts and cures internally, no surface coating or film.
- PAINTABLE & COATING-COMPATIBLE – Prepares concrete surfaces for coatings by helping reduce moisture movement through the substrate. Compatible with concrete paints, epoxy coatings, clear sealers, overlays, and adhesives.
- IDEAL FOR BASEMENTS & FOUNDATIONS – Suitable for basement floors, foundation walls, concrete slabs, garages, and warehouses. Works on poured concrete and concrete block (CMU) foundations.
- COVERS UP TO ~1000 SQ FT PER 5 GALLONS – Coverage varies depending on concrete porosity. Suitable for basement floors, foundation walls, slabs, and concrete block to help reduce moisture vapor transmission.
- NATURAL, INVISIBLE FINISH – Does not change the appearance of concrete. No gloss, no darkening, and no surface film.
