When it comes to waterproof sealers there are a few different types of sealers that can be used. Which concrete sealer you use depends on if you are trying to stop water from being absorbed into the surface, or if you are trying to stop water from coming up through the concrete pores.

If you are trying to stop water from being absorbed on the surface you want a water repellent concrete sealer. Water repellent concrete sealers form an invisible hydrophobic barrier within the pores that caused water and other liquids to bead off the surface. Water repellents are usually derived from Siliconate, like the Armor SC25, or Silane-Siloxane, like the Armor SX5000 or Armor SX5000 WB. One product is not better than the other, and they both offer the same benefits. The primary difference being the Armor SC25 requires only one coat and works primarily on the surface, where the Armor SX5000 requires two coats and will also work to reduce the amount of moisture that moves through the concrete pores. Silicone water repellent sealers and Silane-Siloxane concrete sealers are breathable, and they will not change the look or color of the concrete or leave a surface film. An alternative to penetrating sealers would be coatings which put a layer over the surface of the concrete that stops all water and liquids from coming into contact with the concrete. Coatings are Acrylic, like the Armor AR350 or Armor AR500, Urethane, like the Armor UTN60, or Epoxy.

If you aren't worried about water on the surface, but are instead looking to reduce the movement of water or moisture through the pores you need a few things. First, the only way to absolutely stop water is with a concrete repair product. Sealers are breathable and coatings, although strong, aren't strong enough to hold back water. If you don't have a crack, sealing may need to be done on the exterior of the foundation/concrete. If you have a little dampness on your concrete, or moisture issues, you want to start with a concrete Densifier, like the Armor S2000 or Armor L3000. Densifiers will chemically react within the pores to form a hardened structure within the pores. A smaller pore size will reduce the movement of water. Multiple treatments may be required. Once fully cured, you then want to seal with a Silane-Siloxane blend water repellent sealer like the Armor SX5000 or Armor SX5000 WB. The combination of products, Densifier and water repellent, can reduce up to 3-7 LBS of moisture.


Armor SX5000 Penetrating Silane Siloxane Concrete Sealer and Masonry Water Repellent (5 GAL)

Armor AR350 Solvent Based Acrylic Wet Look Concrete Sealer and Paver Sealer (5 GAL)

Armor AR500 Solvent Based Wet Look High Gloss Acrylic Concrete Sealer and Paver Sealer (5 GAL)

Armor UTN60 Oil and Gas Resistant Aliphatic Urethane Concrete Floor Coating

5 GAL Armor S2000 Concentrated Sodium Silicate Concrete Densifier Sealer and Surface Hardener

Armor SC25 Siliconate Water Repellent Concrete Sealer with Salt Guard (1 GAL)