It prevents or reduces concrete cracking, spalling and crumbling, and unsightly efflorescence. RadonSeal works on bare poured concrete, cement blocks, mortar, and most bricks, even when wet or leaking. Its spray-on application is quick and easy for builders and contractors, as well as homeowners. The cost is comparable to painting the concrete, but there are no VOC's or noxious odors and it leaves no film or coloring. The surface remains unchanged, non-slippery, and paintable.
Drainage systems silt up and exterior coatings disintegrate.
Concrete paints or surfaces sealers cannot withstand water pressure, peel under attack by chemicals from the concrete, or blister due to efflorescence. RadonSeal permanently stops water seepage even against hydrostatic pressure. Exterior coatings deteriorate. Excessive dampness results in condensation. Floor covering or finishing the basement traps moisture.