Cutting-Edge Penetrating Sealers for
Concrete, Brick, and Masonry

The best selection of the state-of-the-art penetrating sealers for porous building materials:

• Seal concrete, bricks, stucco, pavers, limestone, and masonry
• A wide choice of silicate, polysiloxane, and polyester-based sealers
• Commercial, industrial, or residential applications
• Indoor or outdoor
• Old or new
• Underground or above-grade.

These are not paints or surface sealants but unique, high-tech deep-penetrating sealers for demanding building owners, contractors, and homeowners. The strongest and heaviest sealers in their class. Their common characteristics:

1. No surface film – the seal cannot peel or wear off
2. Deep penetration into substrate (1–4 inches)
3. Waterproof and reduce vapor transmission
4. Preserve against deterioration due to moisture and chemicals
5. UV-resistant – hidden deep below the surface
6. Permanent seal, no re-application required
7. Breathable – the smallest pores remain open 
8. Easy and safe application with a low-pressure sprayer 
9. Environment-friendly, no solvents, waterborne, zero or very low VOCs
10. User-friendly, non-toxic, nonflammable, non-hazardous.  

Superior to anything available in stores, which depend on a surface film, can peel, are toxic, diluted, and have to be re-applied every year. A brief Comparison of Concrete sealants …

RadonSeal Deep-Penetrating Concrete Sealer (silicate-based)

Internal reactive sealer that penetrates up to 4 inches into concrete, chemically reacts with alkalis and hardens as a mineral. It's like injecting more cement into the pores. Provides the tightest seal in concrete against water, vapor and gases. More about RadonSeal Concrete Sealers …

• Bonds, strengthens, and preserves concrete 
• Seals poured concrete, concrete blocks, cinder blocks, mortar, stucco, shotcrete, stucco, and grout, but not for fibercrete or colored concrete
• Waterproofs against both positive and negative side hydrostatic pressure (basements, retaining walls)
• Seals also against water vapor and even radon gas
• Neutralizes lime and stops efflorescence
• Hardens the surface and stops dusting
• Leaves the surface paintable, the surface "wets"
• Resists acids and harsh chemicals, spills wash off easily
• Permanent, no re-application needed
• Limited 20-year warranty. 

LastiSeal Concrete & Brick Sealer (polyester-based)

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. Leaves the surface paintable. About LastiSeal Concrete & Brick Sealers …

• Seal concrete, blocks, colored concrete, fibercrete, clay bricks, pavers, stucco, and porous stones
• Waterproofs permanently against rain and surface water
• Repels water – water beads on smoother surfaces
• Reduces water vapor transmission   
• Reduces efflorescence and dusting
• Resists chemicals, wipe or wash off spills
• Excellent primer for paints or coatings like epoxy, urethane, acrylics (except latex and silicone)
• Limited 10-year waterproofing warranty.

LastiSeal Masonry Color Sealer (polyester-based)

Combines the plain LastiSeal sealer with UV-resistant pigment stains. Deep-seals and colors the substrate in one step. Beats concrete painting or acid-staining. About LastiSeal Masonry Color Sealer …

• Use indoor or outdoor on concrete floors, driveways, pool decks, sidewalks, garage floors, parking areas, countertops.
• Seals and waterproofs permanently, repels water
• An attractive mottled look similar to acid-staining
• A wide choice of 36 attractive colors
• Matte or low-gloss finish depending on the surface
• Waterproofs permanently against rain and surface water
• Limited 10-year waterproofing warranty.

Subsurface Elastomeric Sealers (polysiloxane-based)

Penetrate up to 1-1/4” into concrete, bricks or masonry and form an elastomeric water-repellant membrane well below the surface, hidden from UV-rays. Not dependent on cement content. It's like injecting silicone caulk into the pores. The Plus grades seal even through a single layer of latex paint. About Subsurface Membrane Concrete Sealers …

• Seal outdoor concrete, blocks, colored concrete, clay bricks, pavers, stucco, masonry, driveways and garage floors
• Waterproof the surface, repel and shed rainwater
• Makes smooth surfaces will bead water. If beading stops after 5–10 years, can be re-sprayed.
• Protect against road salts, oils and contaminants
• Spills wipe off easily, not paintable
• Reduce efflorescence
• Permanent seal – continues to shed water.

Ion-Bond Armor (polysiloxane-based)

A unique subsurface elastomeric sealer for concrete that penetrates up to 1-1/2” into concrete. Often applied after RadonSeal for the tightest combined seal against vapor and gases. Seals even through a single layer of latex paint. About Ion-Bond Armor Concrete Sealer …

• For waterproofing basements and concrete retaining walls
• For exterior concrete, blocks, bricks, and masonry
• For concrete slabs
• Waterproofs, resists both positive and negative side water pressure
• Repels and sheds water, spills wipe off easily
• Reduces water vapor and efflorescence
• Suitable for painting or adhesives
• Permanent waterproofing seal.

How to select the best sealer for your project  

RadonSeal is the best sealer for bare (unpainted) poured concrete or blocks with normal cement content. Not for colored concrete or fibercrete. It penetrates the deepest, strengthens the concrete, and forms the tightest seal that even seals against gases. For application tips, visit RadonSeal Application Instructions & Tips

The other sealers do not penetrate as deep but they seal regardless of the cement content, internal coloring, or additives. They also waterproof non-cementitious materials like bricks, stones, and lightweight masonry, provided the pores are not too large.

Subsurface membrane sealers, with the exception of Ion-Bond Armor, are not suitable for negative side water pressure like in basements and retaining walls.

If the surface is painted, Ion-Bond Armor and Plus subsurface elastomeric sealers waterproof even through a single layer of latex paint.

Newly poured concrete:
Before sealing with RadonSeal Standard, let the concrete cure and and develop capillaries for at least 28 days.
LastiSeal Masonry Color Sealer also requires a pH below 10 (most paints need a pH below 10 or 9). New indoor concrete may need a treatment with a mild acidic solution like our EasyEtch pH Reducer.

How to combine sealers for special applications 

How to deep-seal concrete and create a water-repellent surface:
Seal the concrete with RadonSeal and in 10 days or later with Concrete Armor or Concrete Armor Plus. It makes spills easy to wipe off, while RadonSeal prevents water vapor from getting trapped under the membrane sealer and turning it white.

How to seal porous concrete slabs before installing flooring:
How to seal slabs before installing moisture-sensitive flooring:
How to seal slabs against gases or vapor intrusion:
Deep-seal the concrete with RadonSeal and in 10 days or later with Ion-Bond Armor. This forms the tightest possible seal against water vapor transmission and gases, including radon. The surface remains suitable for paints or adhesives.

How to seal against vapor and color the concrete:
Deep-seal the concrete with RadonSeal and after 5 days or later, spray on one application of LastiSeal Color Sealer for a tighter seal against water vapor and a great color.

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MADE IN USA
Products not sold through retail stores. Available exclusively from:
Radon Mitigation & Concrete Waterproofing Co.
Novion Inc., 18 L'Hermitage Drive, Shelton, CT 06484 USA
RadonSeal™ is a registered trademark. Copyright © 1998-2009. All rights reserved.

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