RadonSeal Plus Concrete Sealer & Densifier (5 Gal)

Ordering Information: This is a Walder Foundation Product (WFP) and must be ordered separately from all other non-WFP products. The listed price does not include shipping. WFP will confirm your order, including shipping costs, and invoice you directly. To avoid delays in order fulfillment, do not send payment to GHS.

RadonSeal Plus is a deep-penetrating, water-based concrete sealer that permanently seals, strengthens, and waterproofs poured concrete, concrete blocks, and limestone. It penetrates up to 4 inches to block moisture, radon gas, and other soil gases while withstanding hydrostatic pressure.

Key Benefits:
•    Waterproofing & Mold Prevention – Prevents wet basements, mold, mildew, and water damage
•    Radon Mitigation – Reduces radon gas and improves indoor air quality
•    Concrete Strengthening – Hardens and protects against cracking, dusting, freeze-thaw damage, and road salts
•    Eco-Friendly & Safe – Zero VOCs, non-toxic, odor-free, and safe for people, pets, and plants
•    Permanent Protection – Reacts with concrete to seal pores permanently—no reapplication needed
Ideal For:
•    Basement & foundation walls
•    Crawl spaces & concrete floors
•    Driveways, garages, seawalls
•    Indoor & outdoor poured concrete

Coverage Per Gallon:
•    Indoor Poured Concrete: 200–225 sq. ft.
•    Outdoor Poured Concrete: 175–200 sq. ft.
•    Concrete Blocks: 100–125 sq. ft.

Application Guide:
•    Use RadonSeal Plus for older concrete (poured concrete 20+ years, outdoor concrete 2+ years, concrete blocks, and limestone).
•    Use RadonSeal Standard for newer indoor poured concrete (under 20 years) or outdoor concrete (under 2 years).