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
• Silicate, polysiloxane, and polyester-based sealers
• Commercial, industrial, and 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 the most 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 or at least, lasting for a number of years
7. Breathable – the smallest pores remain open 
8. Easy and safe application with a low-pressure sprayer 
9. Waterborne, zero or very low VOCs
10. Non-toxic, nonflammable, and environment-friendly. 

Superior to anything available in stores. We do not use sealers that depend on a surface film, can peel, are toxic, diluted and cheap, and have to be re-applied every other year. A brief Comparison of Concrete sealants …

RadonSeal Deep-Penetrating Concrete Sealer (silicate-based)

Internal reactive sealers that penetrates up to 4 inches into concrete, chemically reacts and hardens as a mineral. Comparable to injecting more cement into the pores. Best choice for standard concrete, which is not painted or internally colored. Leaves the surface paintable. More about RadonSeal Concrete Sealers …

• Bonds and strengthens concrete 
• Waterproofs poured concrete, concrete blocks, cinder blocks, mortar, stucco, shotcrete, stucco, and grout
• Seals also against water vapor and even radon gas
• Neutralizes lime and stops efflorescence
• Hardens the surface and stops dusting
• Resists acids and chemicals
• 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. Comparable to injecting epoxy into the pores. Leaves the surface paintable. About LastiSeal Concrete & Brick Sealers …

• Seal concrete, blocks, colored concrete, fibercrete, concrete with additives, light-weight CMUs, splitface blocks, clay bricks, pavers, stucco, stones, masonry
• Waterproofs, reduces water vapor transmission   
• Reduces efflorescence and dusting
• Resists chemicals
• Permanent waterproofing seal
• Limited 10-year waterproofing warranty.

LastiSeal Masonry Color Sealer (polyester-based)

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

• Seal concrete, blocks, colored concrete, fibercrete, concrete with additives, light-weight CMUs, splitface blocks, clay bricks, pavers, stucco, stones, masonry
• Waterproofs, reduces water vapor transmission
• Reduces efflorescence and dusting
• A wide choice of attractive colors
• Permanent waterproofing seal
• Limited 10-year waterproofing warranty.

Subsurface Elastomeric Sealers (polysiloxane-based)

Penetrate up to 1-1/4” into concrete, clay or masonry and form an elastomeric water-repellant membrane well below the surface, hidden from UV-rays. Not dependent on cement content. Comparable to injecting silicone caulk into the pores. The Plus grades seal even through a 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
• Protect against road salts, oils and contaminants
• Spills wipe off easily, not paintable
• Reduce efflorescence
• Smooth surfaces will bead. When exposed to sun, beading may stop after 5–10 years and then, can be re-sprayed.
• Permanent seal – continues to shed water.

Ion-Bond Armor (polysiloxane-based)

A unique subsurface elastomeric sealer for concrete that penetrates up to 3/4” into concrete. Resists negative-side water pressure and leaves the surface suitable for paints or adhesives. Often applied after RadonSeal for the tightest possible seal against vapor and gases. Seals even through a layer of latex paint. About Ion-Bond Armor Concrete Sealer …

• For basements and concrete retaining walls
• For exterior concrete, blocks, bricks, and masonry
• For concrete slabs
• Waterproofs, resists water pressure from both sides
• Repels 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 and without internal coloring or excessive additives. 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 and they also seal non-cementitious materials, bricks, stones, and masonry.

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, allow the concrete to cure for at least 4 weeks and develop capillaries.
The Masonry Color Sealer also requires a pH below 10 (most paints need a pH below 10 or 9). While the alkalinity of outdoor concrete drops rather quickly, new indoor concrete may need a treatment with a mild acidic solution.

How to combine sealers for special applications 

How to deep-seal concrete and create a water-repellent surface:
Seal the concrete with RadonSeal and 10 days 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 10 days later with Ion-Bond Armor. This forms the tightest possible seal against water vapor transmission and infiltration of 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 10 days later, spray on one application of Masonry Color Sealer for a tighter seal against water vapor and a great color.

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telephone (203) 225-0366 or toll-free 1-800-472-0603

MADE IN USA
Products not sold through retail stores. Available exclusively from:
Radon Mitigation & Waterproofing Concrete Sealer Co.
Novion Inc., 18 L'Hermitage Drive, Shelton, CT 06484 USA
RadonSeal™ is a registered trademark. Copyright © 1998-2008. All rights reserved.

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