Concrete’s Porous. Seal It!
RadonSeal Standard Deep-Penetrating Concrete Sealer is a Solvent-Free, zero-VOC, Non-Toxic, Eco-Friendly, ready-to-use, reactive-based sealer formulated for maximum penetration and sealing of capillaries inside concrete and high-quality cementitious substrates. It works by being absorbed deep into porous concrete (up to 4″), where it chemically reacts with the free lime and alkalis to seal the matrix of the concrete, neutralize, and chemically harden surfaces. RadonSeal is permanent – reapplication is never required.
Waterproofing – Restricts the transmission of water vapor, capillary water seepage, wicking water, radon, and other soil gases. Reduces efflorescence and salt deposits. Protects and improves the lifespan of concrete paints, stains, epoxy & urethane coatings, and concrete levelers against water-induced delimitation and alkali attack.
Strengthens – RadonSeal increases surface hardness (ASTM C 779), which helps protect concrete against cracking, crazing, spalling, and surface deterioration due to vehicular traffic, road salts, freeze-thaw, and deicing chemicals. Use RadonSeal to alleviate concrete surface dusting before applying paints and epoxy coatings. Penetrates Concrete (up to 4″) – Seals Concrete Internally. Blocks the Pores and Capillaries to Prevent Water Seepage, Water Vapor, and Radon Gas. Ideal For Use on Basement Floors, Interior Basement Walls, Foundation Walls, Slab-On-Grade, Indoor and Outdoor Poured Concrete Slabs, and Walls.
Hardens Concrete – Helps to Protect Against and Reduce Concrete Dusting, Efflorescence, Damage Caused by Salts, De-Icing Chemicals, and Freeze-Thaw. Does Not Trap Moisture.
Earth-Friendly & Easy to Apply Formula – Zero VOCs, No Odors, No Solvents, Non-Toxic, Non-Flammable. Water-based.
Permanent & Paintable – No Reapplication Needed. Resistant to Hydrostatic Water Pressure. Does Not Form a Surface Film. No Peeling or Fading. Leaves Surface Paintable. Great Primer for epoxy, tiles, adhesives, and Overlay Flooring.
Commercial-Grade – Backed by a Money-Back Guarantee, Trusted Since 1997.
Need Help with Your Project? Our knowledgeable technical support team is just a phone call or email away. We’re here to help you get the job done right.
Fast Shipping: Most orders received by 2:00 PM EST ship the same business day via Ground Delivery. Delivery typically takes 1–3 business days to the East Coast and Central states, and 3–5 business days to West Coast destinations.
Exclusions: Stamped concrete, integrally colored or acid-stained concrete, polished concrete floors, modified hydraulic cement, fiber-reinforced concrete, exterior split-face or lightweight concrete blocks, bricks, or pavers.
