RadonSeal Concrete Sealers

Starting at: $179.00

RadonSeal Deep-Penetrating Concrete Sealer has been the leading concrete sealer for commercial and residential projects since the late 1990’s. It is a reactive, internal sealer, for poured concrete, heavyweight concrete blocks, mortar, and other cementitious materials. Unlike the majority of concrete sealers sold in stores, RadonSeal is not a surface sealant. It seals the matrix of concrete without coating the surface and can be safely used on heavy foot-and-vehicular traffic areas. RadonSeal works by being absorbed by porous concrete, penetrating deep below the surface (up to 4″), chemically reacting with free lime and alkali, expanding inside the pores and capillaries, and curing as a hardened silicate mineral. It is like injecting more cement into the concrete!

Once cured, the sealer is permanent and will protect basement, slab-on-grade, and subteranean concrete against capillary water seepage, efflorescence, water vapor, and even radon gas. RadonSeal also strengthens, densifies, and hardens outdoor concrete, protecting surfaces against freeze-thaw, cracking, crazing, spalls, and minor defects.

see below for full
function & benefits list

Available in 5 Gallon Pails.

RadonSeal Standard & Plus

Recommended for indoor poured concrete such as basement floors and walls, foundation slabs, and garage floors less than 20 years old. Also use on outdoor concrete (driveways, sidewalks, walls, rooftops, decks) less than 2 years old.

Recommended for sealing older and more porous concrete, such as concrete blocks, cinder blocks, poured indoor concrete over 20 years old or poured outdoor concrete more than 2 years old. It carries more active minerals for larger pores in concrete.

Coverage varies with surface porosity.

  • Poured concrete 2 applications 1,000 sq. ft. per 5-gal. pail
  • Concrete blocks 3 applications 500 sq. ft. per 5-gal. pail
  • Cinder Blocks or very porous blocks 4 applications 400 sq. ft. per 5-gal. pail

Information on RADON GAS

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