1 Gallon Armor SX5000 Silane Siloxane Penetrating Concrete Sealer and Masonry Water Repellent
1 Gallon Armor SX5000 Silane Siloxane Penetrating Concrete Sealer and Masonry Water Repellent
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Foundation Armor

1 Gallon Armor SX5000 Silane Siloxane Penetrating Concrete Sealer and Masonry Water Repellent

Key item features

  • PROFESSIONAL GRADE SILANE SILOXANE SEALER: The Armor SX5000 is a professional-grade solvent-based silane siloxane sealer designed for use on unsealed concrete, brick, paver, bluestone, flagstone, slate, natural stone, and masonry.

  • REDUCES WATER ABSROPTION BY UP TO 95%: The Armor SX5000 chemically reacts to form a water-repellent barrier below the surface that will reduce the absorption of water and other liquids by up to 95%.

  • WON’T CHANGE THE LOOK OR COLOR: Formulated with high-quality US-manufactured resins, the Armor SX5000 is designed to protect concrete, brick, pavers, stone, and masonry without changing the look, color, or feel. The substrate will look and feel exactly as it did before it was sealed!

  • LONG LASTING PROTECTION: The Armor SX5000 Silane-Siloxane concrete sealer chemically reacts to form a water-repellent barrier below the surface that can last for up to 7-10 years. By reducing the absorption of water through the surface, damage caused by water absorption is also reduced. Sealed surfaces are more resistant to cracking, spalling, ice damage, salt damage, organic surface growth, and staining.

  • READY TO USE: The Armor SX5000 is ready-to-use and can be applied to a properly cleaned and prepped unsealed surface with a solvent-resistant pump sprayer. One gallon covers up to 175-225 square feet per gallon. Foundation Armor cleaners and sprayers are available separately.

  • EASY TO MAINTAIN: The Armor SX5000 works entirely below the surface so there is no surface film or coating to maintain. When it is time to reseal, simply apply 1-2 coats of the Armor SX5000 to a clean, dry, and absorbent surface with a pump sprayer.

Current price is $69.99
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Arrives by Mon, Jun 15
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Sold and shipped by Foundation Armor
4.7555555555555555 stars out of 5, based on 45 seller reviews(4.8)
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Customer ratings & reviews

4.9 out of 5 stars
stars211 ratings200 reviews
How item rating is calculated
  1. 5 stars95% (201)
  2. 4 stars4% (8)
  3. 3 stars0% (0)
  4. 2 stars0% (1)
  5. 1 star0% (1)

Reviews summary

Pros

  • : Application requires minimal effort and is straightforward.
  • : Applied easily with various types of sprayers.
  • : Leaves a natural-looking finish that repels water.
  • : Provides even application matching label description.
  • : Provides protection against water and stains.
  • : Forms a waterproof barrier without altering appearance.
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Showing 1-3 of 200 reviews

Sep 4, 2025
TD
5 out of 5 stars review

The best cement driveway sealer in the market.

After researching and testing several sealers, I landed on a penetrating sealer that truly delivers. Easy application with a sprayer or 3/8-inch roller, no odor, and fast drying; water beads instantly. Weeks later, with heavy rain and temperature swings, the concrete still looks fresh and resists staining. No gloss, not slippery, just solid protection.

Review from https://foundationarmor.com/
Helpful?2649VKRVLPN2138030472
May 8, 2020
Judy
5 out of 5 stars review

Verified Purchase

Happy with the sealant

I researched brick and flagstone sealers and this is the one I chose to use. It states that the sealant will last for 10 years and will help to keep the efflorescence from forming on the bricks. I was plagued with that issue last winter, so I am hoping this product does the trick. It was super easy to apply with a 6" roller. I covered my bricks and flagstone in under two hours and used 2 gallons. I like how it brought the richness of the bricks out without any shine. The flagstone remained about the same. I would purchase this product again.

Helpful?2649VKRVLPN2138030472
Aug 12, 2025
AZ135
5 out of 5 stars review

Excellent Product

My pool deck is 17 yrs old stamped concrete with a salt water system. The salt was eating away the old sealer and penetrating the concrete. I stripped the old sealer off with another product, because the CR100 didn't work. I waited until late afternoon when the sun was off the deck and the concrete was cooling to apply. Using the Foundation Armor sprayer (very good sprayer) I applied the first coat which soaked in immediately. By the time I finished I applied the second coat and it quickly absorbed. In some areas I applied a third coat. As described, it doesn't change the color or texture of the concrete; it looks completely natural as I wanted. I waited 24hrs before testing with water. I covered one section with water and my concrete doesn't bead up, but the water did not absorb into the concrete, sat on the surface until it dried. Family went swimming a week later and it did the job. No water absorbed and it dried on the surface in the sun.

Review from https://foundationarmor.com/
Helpful?2649VKRVLPN2138030472