Armor SX5000 Natural-Look Penetrating Solvent-Based Silane Siloxane Concrete Sealer for Concrete, Brick, Pavers, and Natural Stone - 1 Gallon

I have used Foundation Armor SX5000 (Solvent based) for years on several home stone projects. Its easy to apply, and lasts for years. I have used it exclusively on exterior limestone chimney and several limestone siding projects. Once applied, the water just runs off of the limestone (which is notoriously porous). Couldn't be happier with this product!

Shipped promptly. Easy application. Kinda pricey.

I sealed water out of the brick and cement. This product is easy to apply with a brush / roller. The chimney is old, has spalling bricks, and the top has surface cracking. To prevent that from worsening I used this product. Chimney didn't change colors, and there has been no new spalling as the winter has progressed. I am hopeful that the product will work for up to 7 years. I also tried to use a garden sprayer, but the product dissolved the sprayers o-rings. Just use a brush or roller as suggested. Or get the water based product if you want to use a sprayer.

Pros: I was very impressed with the ease of application, look, and water repelling capability. I was able to cover approximately 500 sq with two coats using a brush. Cons: The product description on the website doesn't include the laundry list of health and safety concerns, received in the box, which is required to properly apply this product and dispose of extra material. The product is EXTREMELY flammable! The product notes the use of a very specific sprayer to apply, which I hadn't purchased. Additionally, the product noted the extreme need to wear a respirator and keep the product away from eyes. Additionally, the product noted multiple safety concerns to plants and wildlife, none of which are noted in the product description here on Amazon. I wore a respirator and used a paint brush to apply. I didn't mind taking the extra safety and health prevention measures but the company should post these hazards in the product description on Amazon.

I wanted to write this to thank the sellers of this product and let people know this product works perfectly. Background: I live in the city and my garage opens up to an ally--on either side of my garage are cinder blocks--and for 20 years salt trucks have been spraying salt and this year I noticed when it rained the cinder blocks outside AND inside my garage would show signs of wetness. Needless to say this is not good--so I concluded that erosion on the ouside cinder block had caused this. I ordered this product and followed directions exactly and the wetness has 100% stopped. We got a rain storm with 5 inches of rain this past 24 hours and not one drop of rain wets those blocks. This product WORKS. Thank you!

This by far is the best concrete sealer a customer can buy without going through a contractor. Don't not allow the price to deter you from purchasing this product. If your going to do it, do it right. A common pump sprayer will not work. The chemicals deteriorate the rubber tubing in no time. Make absolutely sure you use a pump sprayer that is rated for harsh chemicals.

Not sure about this product yet. Bought it for a new retaining wall. Left a light haze when dry. Very non- viscus. Soaks in quickly. Didn’t seem to create the moisture barrier I was expecting. Maybe I should have bought more and added subsequent applications.

This was my first time sealing pavers. I followed the directions carefully and I'm pleased with the outcome. The images attached clearly show water beading so this should do a good job of keeping the mold out. I will be purchasing more of this product for another job.