Penetrating Sealers for Your Concrete, Brick, and Masonry

The RadonSeal Edge - Waterproofing Expertise Since 1997

Waterproofing solutions are not always simple but with a little know-how and the right advice permanent fixes can be accomplished relatively easy and inexpensive. For the past 17 years we have been dedicated to offering our customers unbiased expertise, unparalleled service and our professional-quality, ready to use, concrete sealers, brick sealers, and concrete repair products.

Whether your intention is to dry out a damp basement, reduce radon levels, waterproof a brick chimney, prevent concrete dusting, or preserve the look of your outdoor concrete, our line of trusted, professional-grade penetrating concrete sealers will more than exceed your expectations!

Waterproofing Sealers for your outdoor concrete, brick, and masonry

Comparative Review of Concrete Sealers

When Performance Matters – No messy mixing needed, no sticky residue left behind, our sealers are ready to apply upon delivery. Incomparable to anything available in stores, which sell film-forming sealers that will break down, peel, discolor, and most having to be reapplied annually. The RadonSeal® pro-line of long lasting, penetrating waterproofing sealers have an extensive and well proven history when quality and performance matter!

  • COMMERCIAL, INDUSTRIAL, or RESIDENTIAL APPLICATION - Easy and safe application for contractors and homeowners.
  • INDOOR or OUTDOORWet basements, patio pavers, concrete driveway, pool deck, sweating garage floor, koi pond, etc.
  • NEW or OLD CONCRETE, BRICK, or MASONRY –"Chicago" brick, rat slabs, cinder blocks, concrete blocks, thin concrete, crawl spaces.
  • ABOVE and BELOW GRADE Waterproofing – Basement walls and floor, negative side water pressure, stone foundation, retaining walls.

How To Choose the Best Concrete, Brick, and Masonry Sealer

Waterproofing Sealers for a Your Concrete, Brick, and Masonry! The chart and product information below will help you better understand how to select the proper penetrating sealer for your specific project. If you wish to discuss your particular application or have any questions regarding your project feel free to contact us to speak with a service technician (or email us your questions). YY - RECOMMENDED, Y - GOOD CHOICE

WATERPROOFING SEALER RadonSeal Ion-Bond
LastiSeal LastiSeal Stain DryWay
POURED CONCRETE
Basement Walls, Concrete Slabs YY Y Y Y -
Driveways, Garage Floors, Sidewalks YY - Y Y YY
Pavers - - YY Y YY
Animal kennels, Stables YY Y Y - YY
Fish ponds, Gunite pools YY Y Y - -
Fibercrete - Y Y - Y
Thin concrete, Rat slabs (<2”) Y YY YY Y Y
Structural concrete (>5,000 psi) - YY Y - -
Stamped concrete (not sealed) - Y Y - Y
Acid stained/Integrally colored - Y YY Y Y
Painted concrete (1 layer of latex) - Y - - -
CONCRETE BLOCKS
Concrete Blocks, Cinder Blocks YY Y Y Y Y
Mortar, Parge Coat Y Y YY Y Y
Light-Weight CMUs, Retaining Walls - Y YY Y Y
Split Face Blocks - Y YY Y Y
BRICK, STONE, & MASONRY
Brick Walls, Chimneys - - YY Y Y
Brick and Masonry Pavers - - YY Y YY
Unglazed Mexican Tile - - YY Y Y
Man-Made Stone, Adobe - Y YY - YY
Limestone, Sandstone YY Y Y - Y
Masonry Facades, Monuments, Statues - Y YY YY YY
OTHER
Stucco over concrete (unpainted) YY Y Y Y YY
Stucco over brick (unpainted) - Y YY Y YY
Grout - - YY - -
Plaster Y - Y - -
Overlays, Patching Compounds - Y Y - Y

RadonSeal Deep-Penetrating Concrete Sealer

Product Information – Lifetime Money-Back Guarantee

RadonSeal Concrete Sealer 5-gallon pailThe Permanent Solution to Concrete Waterproofing! Silicate-based, internal reactive sealer that penetrates up to 4 inches into concrete and chemically reacts with alkalis and hardens as a mineral. Using RadonSeal® is like injecting more cement into the pores! Once cured the sealer cannot be pushed out regardless of hydrostatic pressure. RadonSeal will provide your concrete the tightest seal against water, vapor and gases. Common Use: Wet basement, foundation walls, damp concrete floors, concrete blocks, cinder blocks, sweating garage floor, stone and mortar foundation.

  • WATERPROOFS - seals against both positive and negative side hydrostatic pressure.
  • STRENGTHENS - Bonds, and preserves concrete. Reduces concrete dusting, cracking, and spalling.
  • REDUCES - Seals also against water vapor and formulated even against harmful radon gas.
  • ALLOWS - Concrete to breathe, dry out.
  • NEUTRALIZES - Neutralizes lime and stops efflorescence.
  • PAINTABLE - Superior concrete primer, allows for use of paints, adhesives, thinset, and overlays.
  • RESISTS - Acids and harsh chemicals, protect concrete from damage.
  • PERMANENT - No reapplication is needed, seal becomes integral to the concrete.

LastiSeal Brick & Masonry SealerLastiSeal Brick Sealer

Product Information – 15-Year Waterproofing Warranty

The best brick and masonry sealer on the market! Polyester/polyurethane based brick sealer. Penetrates 2 to 4 inches into porous materials, fills up the pores and hardens. Seals a wide range of porous materials regardless of their cement content or additives. It's like injecting epoxy into the pores. LastiSeal® leaves the surface paintable, except for latex and silicone. LastiSeal will also not change the surface appearance or the friction of the substrate. Common Use: Bricks, brick walls, brick chimneys, brick pavers, porous stone, man-made stone, colored concrete, stamped concrete.

  • WATERPROOFS - Deep seals porous brick, mortar, and masonry waterproofing it against rain and surface water.
  • REPELS – Sheds surface water, oil, chemicals, spills on smoother surfaces.
  • RESTRICTS - Water vapor transmission.
  • REDUCES - efflorescence and concrete dusting.
  • CONRETE & BRICK PRIMER - Allows for use of paints or coatings like epoxy, urethane, acrylics (but not latex).

LastiSeal Concrete Stain & Sealer

Product Information – 15-Year Waterproofing WarrantyLastiSeal Concrete Stain

Your One-Step Sealer and Stain! Polyester/polyurethane based concrete stain and concrete sealant. LastiSeal® Concrete Stain & Sealer combines clear the clear penetrating sealer with UV-resistant pigment stains. Deep-seals and colors the substrate in one simple step. Beats concrete painting and is much safer than acid staining. Common Use: Concrete floors, patios, concrete driveway, walkways, sidewalks, pavers, pool decks, garage floors, concrete countertops, statutes.

  • USE - Appropriate for both indoor and outdoor application.
  • APPEARANCE - Stains concrete leaving a mottled look similar to acid-staining.
  • SHEDS- Repels surface water. Seals internally, waterproofs concrete.
  • 37 COLORS - Colors can be mixed to achieve desired color.
  • FLAT - Leaves a matte or low-gloss finish depending on surface porosity.
  • LASTING SEAL - Seals against rain and surface water. Reduces concrete efflorescence.

DryWay Repellent Concrete Sealer

Product Information – 15-Year Service LifeConcrete Driveway Sealer

Your Water-Repellent Barrier for Years To Come! Siloxane/silane based. DryWay penetrates up to 1/2” into concrete and forms an elastomeric water-repellant barrier well below the surface, hidden from UV-rays. Not dependent on cement content. Disappears into concrete and will not change the appearance or friction of your outdoor concrete. Common Use: Driveway, garage floor, auto body shop, sidewalks, pavers, pool decks, patios, retaining walls, parking garage, stucco, blocks.

  • BEADS - Beads surface water, oil, grease, acid, and spills.
  • PROTECTS - Protects concrete against freeze-thaw, road salts, chemical deicers, efflorescence, and contaminants.
  • REDUCES - Ice, snow, paint, and gum do not stick - saves on labor and snow-melting chemicals.
  • EASY CLEANING - Spills wipe or wash off easily. Makes for easy maintenance!
  • DURABLE - Not affected by UV rays, foot traffic, or vehicular traffic.

Ion-Bond Armor Subsurface Elastomeric Sealant

Product InformationConcrete Sealant

The Only Sealer Capable of Penetrating Through a Layer of Latex Paint! Polysiloxane-based. Ion-Bond Armor offers a unique subsurface elastomeric sealer that penetrates up to 1-1/2” into concrete. It's like injecting silicone caulk into the pores. Only polysiloxane based concrete sealer that waterproofs against both positive and negative side water pressure. Often applied after RadonSeal for the tightest combined seal against vapor and gases. Seals even through a single layer of latex paint (100% latex.) Common Use: Smooth/tight concrete, painted concrete, fibercrete, cinder blocks, concrete blocks, basement floor, thin concrete.

  • REPELS - Sheds surface water, easy maintenance.
  • REDUCES - water vapor transmission and efflorescence.
  • CONCRETE PRIMER - Apply before use of paints or adhesives, as well as thinset and overlays.
  • LONG LASTING - Provides a permanent waterproofing seal.
  • STRENGTH - The combination of RadonSeal and Ion-Bond provide the tightest waterproofing seal.

Common State-of-the-Art Features

These are not paints or store bought surface coatings but unique, penetrating, long lasting sealers that deep-seal the substrate internally. Our waterproofing sealers are specifically formulated to be the heaviest and strongest concrete sealers in their class. The common features of the RadonSeal line of concrete sealers, brick sealer, and masonry sealants include:

  1. NO SURFACE FILM – concrete and brick sealers that will not change the appearance or profile of the substrate.
  2. DEEP PENETRATION – absorb deep into substrate (1-4 inches.)
  3. PRESERVES – sealers that will strengthen and preserve the concrete against deterioration due to moisture and chemicals .
  4. UV-RESISTANT – penetrating sealers that cure deep below the surface providing a longer-lasting seal.
  5. DURABLE – waterproofing sealers that last for many years or for the life of the substrate.
  6. BREATHABLE – the smallest of pores remain open allowing concrete and brick to breathe.
  7. SAFE –non-toxic, nonflammable, non-hazardous.
  8. ENVIRONMENT-FRIENDLY – no solvents, waterborne, either zero or very low VOCs (meets CA/VOC Regs.)
  9. EASY APPLICATION – apply using a low-pressure pump sprayer, paint roller, or brush.
  10. CONCRETE PRIMER – protect surface paints, coatings, and moisture sensitive flooring against negative side water pressure and efflorescence.

Combining the Sealers

"I want to use RadonSeal but I also want to use LastiSeal Concrete Stain to color my concrete as well. Is this possible?" It is possible to combine RadonSeal with any of the other sealers for the utmost protection of your concrete.

• HOW TO STRENGTHEN CONCRETE & CREATE A SURFACE THAT BEADS WATER/SPILLS?

Combine: RadonSeal & DryWay

Common Use: concrete driveway, garage floor, sidewalk, concrete patio, shop floors

APPLICATION: Seal the concrete with RadonSeal and after 7 days (or later) apply DryWay Water-Repellent Sealer. RadonSeal will work best at strengthening the concrete and sealing against negative and positive side water pressure. DryWay will create that long-lasting water repellent barrier close to the surface (beads surface water.)

• HOW TO SEAL CONCRETE SLABS BEFORE INSTALLING MOISTURE-SENSATIVE FLOORING and GASSES OR VAPOR INTRUSION?

Combine: RadonSeal & Ion-Bond Armor

Common Use: slab-on-grade, basement floors, garage floor

APPLICATION: Deep-seal the concrete first with RadonSeal and after 7 days (or later) apply Ion-Bond Armor. The combination of RadonSeal and Ion-Bond Armor forms the tightest possible internal seal against water vapor transmission and gases, including radon. The surface will remain suitable for paints or adhesives.

• HOW TO STAIN CONCRETE AND SEAL AGAINST RADON TRANSMISSION?

Combine: RadonSeal & LastiSeal Concrete Stain & Sealer

Common Use: basement floors, basement walls, garage floor

APPLICATION: Deep-seal the concrete first with RadonSeal and after 7 days (or later) apply LastiSeal Concrete Stain & Sealer. For this type of application surface porosity is key! Please review the LastiSeal Concrete Stain & Sealer Application, Prep, & Tips webpage for detailed information.