Ion-Bond Armor – Subsurface Elastomeric Concrete Sealer

The “Champ” among all siloxane or silane sealers and without equal in the marketplace! Ion-Bond Armor penetrates the deepest, waterproofs the tightest, and the seal is permanent. It even can has the ability to seal through a single layer of latex paint!

Industrial Concrete Sealer by RadonSeal

Ion-Bond Armor’s small molecules able it to penetrate deep into concrete, masonry, clay, and porous building materials, react, and form an elastomeric waterproof barrier well below the surface. It is like injecting silicone caulk into the pores! Ion-Bond waterproofs concrete and masonry against water from above or below – rainwater, melting snow, and underground water infiltration under hydrostatic pressure or by wicking.

What Makes Ion-Bond Armor So Unique?

This state-of-the-art polysiloxane sealer uses waterborne siloxanes, which are organic silicon compounds. (The word siloxane is derived from silicon, oxygen, and alkane.) Its small molecules penetrate deep into pores, react and gel as long-chain molecules, bond to the substrate, and cure. For maximum strength, the molecules are negatively charged during manufacturing to attach themselves

Polymerized siloxanes are closely related to silicones (just like in silicone caulk). Ion-Bond subsurface elastomeric sealer works by filling the pores inside the substrate, not by forming a surface film.

  • Penetrates up to 1-1/2" into concrete (three times deeper than a typical siloxane sealer).
  • Waterproofs the substrate against rainwater, snowmelt, and surface water.
  • The only siloxane sealer that is suitable for basements, foundation slabs, and retaining walls because it waterproofs against negative side water pressure. Hydrostatic pressure from the "other side" cannot push it out of the pores. Stops water wicking.
  • Permanent! No re-applications needed. (Store-sold sealers have to be re-applied every year.)
  • Does not leave a surface film. Does not alter color or appearance of the surface and leaves it suitable for paints, adhesives, or thinset.
  • Seals so deep and tight that is also reduces infiltration of water vapor and gases, while still letting the substrate "breathe."
  • So penetrating that it even waterproofs through a single layer of latex paint, including a widely sold waterproofing paint. (Latex paint is porous. Ion-Bond will not penetrate through other paints, hybrid paints with latex, heavy floor paints, and two or more layers of latex.)

Silicone caulk is very durable but after a while, tends to separate from the concrete. Ion-Bond Armor is so durable because it is imbedded deep inside the pores. It is well hidden from UV-rays that break down other sealers. Once sealed with Ion-Bond, the concrete will remain waterproof for its life.

Concrete sealed with Ion-Bond Armor will shed rainwater and dry out quickly. If there is a puddle in a low spot, it will stay until it evaporates because the concrete is waterproof. But the surface will not bead water because the seal is so deep below the surface. It will not become slippery when wet and will remain paintable. Spills do not penetrate and are easy to wash off.

Order Today

Not sold in stores but delivered directly from the factory to your door. Orders received by 1 pm ET are normally shipped the same day and UPS Ground delivers within 2 to 5 working days in the lower 48 states. For secure and encrypted online processing of your order, click ORDER ONLINE. You can use your credit card, PayPal acccount, or simply phone your order in! Also sold through Amazon and eBay. RETURNS: This is a nonreturnable product. SHELF LIFE: 45 days.

Ion-Bond Armor Subsurface Sealer
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5-GALLONS $299 FREE Order Now button

Best Concrete Sealer - RadonSealCombining Ion-Bond with RadonSeal®

Ion-Bond Armor is often applied to concrete first sealed with RadonSeal® to provide the tightest possible seal against water vapor and gases. The combination of the two sealers is recommended for sealing extremely porous concrete blocks or cinder blocks in basements. It is particularly useful for sealing concrete before installing moisture sensative flooring which is much better than the use of plastic sheets (which trap moisture and cause molds and mildew).

  • CINDER BLOCKS – Waterproofing overly porous concrete/cinder blocks in basements.
  • WOOD FLOORING – Sealing porous concrete slabs to further minimize water vapor transmission before installing flooring.
  • HIGH-RADON LEVELS – Reducing radon gas infiltration to a minimum.
  • CONTAMINATED SOILS – Reducing vapor intrusion from contaminated soils (dry cleaners, landfills, brown fields, hydrocarbon spills, termicides).


Coverage will depend on the porosity and composition of the concrete. Older concrete with larger pores or more alkalis consume more of the product.

  • POURED CONCRETE - 2 applications will cover 1,000 sq. ft.
  • CONCRETE BLOCKS - 2 applications will cover 700 sq. ft.
  • SPLITFACE/CINDER BLOCKS - 2 applicationa will cover 500 sq. ft.

Application & Surface Prep

Ion-Bond Armor is a user- and environment-friendly product – waterborne, nonflammable, and nonhazardous. You can apply it quickly and easily with a low-pressure sprayer like a hand-pump garden sprayer (not included). Before application, mix in the activator with a mixing tool (included) using a standard electric drill.

Surfaces to be treated must be clean, bare, and thoroughly dry. However, Ion-Bond Armor can seal through a single layer of latex paint. Use Ion-Bond Armor as a stand-alone sealer for waterproofing building materials, such as:


IS IT LATEX PAINT OR OIL-BASED? – Scrub a small area with a solution of warm water and household detergent or dishwashing liquid. Rinse well and towel-dry. Soak a Q-Tip, cotton ball or soft rag in rubbing alcohol and rub it back and forth over the clean area. If the paint comes off, it is latex. Or take a chip of the paint and take it to a paint store.

Comparing Ion-Bond with RadonSeal®

RadonSeal is the best sealer for sound, uncolored concrete and cementitious materials. It penetrates the deepest (up to 4”) and reacts with lime. This hardens the surface, strengthens and densifies the concrete, neutralizes lime and alkalis that cause efflorescence. RadonSeal forms the tightest seal against water, vapor, and also radon gas.

Unlike RadonSeal, Ion-Bond Armor is self-reacting – it does not depend on a chemical reaction with lime. It can seal concretes with additives or color pigments like integrally colored concrete and fibercrete. It also seals non-cementitious materials like bricks, stones, and masonry. The downside is a very short shelf life (45 day shelf life).

Ion-Bond molecules are so small that it can seal tighter power-troweled surfaces or dense structural concrete without the need for acid etching or grinding the surface. Both sealers do not bead and leave the surface suitable for paints, thinset and patching compounds.


Concrete Waterproofing and Protection

The subsurface elastomeric membrane repels and sheds water. Liquid spills can be easily washed off. Ion-Bond Armor is resistant to acids and alkalis. Ion-Bond Armor eliminates or reduces concrete pitting, spalling, efflorescence, and even cracking by keeping out surface water. Protects concrete against contaminants and deterioration caused by surface water:

  • Road salts, deicing chemicals
  • Freeze-thaw damage
  • Rusting of re-enforcing steel
  • Chemical spills, motor oils
  • Efflorescence
  • Acid rain, airborne contaminants
  • Molds, mildew, algae.

Comparison with Other Concrete Sealers

There are various water-repellants and concrete sealers on the market based on wax, acrylics, urethanes, or epoxy.

Ion-Bond Armor does not form a film on the surface. Common surface sealers peel or crack, wear off in traffic, break down or yellow due to UV-rays, or lift from negative side moisture pressure or efflorescence.
Some sealers claim to be “penetrating” when they penetrate merely ¼” into the substrate. Ion-Bond penetrates up to 1-1/2” into concrete.
Some sealers form a vapor impermeable film on the surface, trap moisture and activate efflorescence inside the concrete, which is harmful to the concrete and unsightly. Ion-Bond allows the substrate to “breathe”
While most siloxane sealers last only couple years, Ion-Bond Armor waterproofs and protects permanently. The leading driveway sealer sold in stores breaks down so quickly that it has to be re-applied every year.
Ion-Bond Armor does not make the surface slippery when wet.
Many sealers use chemical solvents, which release fumes, odors, and volatiles (VOCs) harmful to people and the environment. Ion-Bond Armor is waterborne, non-toxic, nonflammable, has very low VOCs, and is nonhazardous and environment-friendly.