Penetrating sealers, such as silanes, siloxanes, silicates and siliconates, penetrate into the concrete to form a chemical barrier that shields against moisture penetration and deicing chemicals. Usually they provide invisible protection without changing the surface appearance, and most products are breathable, allowing moisture vapor to escape. They are most commonly used outdoors, since they provide excellent protection against harsh exposure conditions.


A penetrating sealer is your best choice if your goal is to:

  • Protect exterior concrete surfaces subject to corrosion and freeze-thaw damage.
  • Obtain a natural, matte finish.
  • Provide invisible protection without changing the surface appearance or leaving a sheen.

For driveways and walkways where good traction is important, a penetrating sealer is a better choice than a film-forming product, such as an acrylic or polyurethane. Because a penetrating sealer does not leave a glossy film, it will not contribute to the slipperiness of the concrete surface.

How to apply

  • Low-pressure, high-volume sprayer
  • Pump-up garden-type sprayer
  • Roller

Related resources:

Choosing the Best Applicator for Concrete Sealer

Advice on Choosing and Applying Sealers

Featured Products
Deep Penetrating Sealer - RadonSeal Waterproofs & strengthens.
Wet Look Lacquer Green Provides a "wet look" for concrete. Fast drying.
Clear-Seal by Increte Systems Seals and protects decorative surfaces.
Penetrating ConcreteSealer $179.95 (5 gal.)
Colored Concrete Sealer 20 different UV stable colors.
Penetrating Sealer 101 - V-Seal 1 Gallon - $39.95.
Premium Driveway - Patio Sealer Provides UV Shield to protect your concrete
Sure Klean Weather Seal Provides necessary protection for UV and moisture.
Protective Urethane Coating Fast drying, zero VOC low odor sealer.
Find Products & Manufacturers