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🛡️ Seal your concrete’s future—because first impressions last forever!
MasonryDefender Concrete Sealer is a clear, deep-penetrating silane siloxane formula that provides invisible, breathable water repellency and durable protection for concrete surfaces. Ideal for driveways, sidewalks, and patios, it guards against moisture damage, freeze-thaw cycles, and salt corrosion while maintaining the natural look of your concrete. One gallon covers 90-150 sq. ft., making it an efficient and long-lasting solution for professional-grade concrete care.











| ASIN | B076DB2LBY |
| Best Sellers Rank | #14,402 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #62 in Hardware Sealers |
| Brand | MasonryDefender |
| Brand Name | MasonryDefender |
| Color | clear |
| Compatible Material | Concrete |
| Customer Reviews | 4.4 out of 5 stars 914 Reviews |
| Item Form | Liquid |
| Item Weight | 9 pounds |
| Manufacturer | SaverSystems |
| Material | Silicone |
| Material Type | Silicone |
| Number of Items | 1 |
| Part Number | 300550 |
| Style | Bead,Protection |
| Style Name | Bead,Protection |
| Surface Recommendation | Concrete |
| UPC | 709057000307 |
| Unit Count | 128 Fluid Ounces |
| Water Resistance Level | Water Repellent |
J**W
Great for Concrete and Pavers in the PNW Rains
I recently used MasonryDefender Concrete Sealer on our concrete pavers and patio, and I couldn’t be more impressed with the results. Living in the Pacific Northwest, where rain is a constant, our patio and driveway were constantly getting soaked and stained. After applying this Silane Siloxane-based sealer, the difference has been remarkable. Water Repellency & Protection: The sealer is incredibly effective at creating a deep, penetrating barrier that prevents water from soaking into the concrete. After application, I noticed that water now beads up and rolls off the surface, even with the heavy, consistent rains we get here. It's like our patio has a protective shield against moisture, which not only keeps the surface dry but also prevents potential damage from water infiltration, such as cracks and discoloration. Easy to Apply & Long-Lasting: Applying the sealer was straightforward, and the 2.5-gallon size was more than enough to cover our entire patio and driveway. It dries quickly and doesn’t leave any sticky residue or odd finish—just a smooth, invisible protection that doesn’t alter the appearance of the concrete. I’m confident it will provide long-lasting protection for our surfaces, especially during the wet months when they are most vulnerable. Great for Concrete Pavers: We also have concrete pavers in our backyard, and this sealer has been fantastic for them as well. The pavers no longer absorb water, which means no more staining or deterioration from rainwater. Overall: I’m thoroughly pleased with the MasonryDefender Concrete Sealer and would highly recommend it to anyone in the Pacific Northwest (or anywhere with a lot of rain) who wants to protect their concrete and pavers. It’s an excellent investment to keep your outdoor spaces looking great and standing up to the elements year-round!
M**T
Clean Driveway
I researched driveway sealant extensively; this was at the top of my results. The sealant works as advertised. Two months in, and the driveway still is water-repellent. I'm sure as that wears off, the sealant is still doing its job. Tips: buy more than the estimated amount required, apply an even coat below 70 degrees. if you prefer to apply two coats; do it at the same time—don't let it dry. Any blotchy spots will go away in a week. Enjoy.
J**C
Masonry Defender concrete sealer
Used with garden sprayer. Went on clear, smoothly, quickly and easily. Dried within 2-3 hours. Cement steps looked the same as after cleaning them before application. Water beads up nicely after rain.
A**R
Served the purpose at the time
Seems awfully thin, but that probably helps it penetrate concrete better. I used several coats on an area only 8 feet x 5 feet, until the jug was empty. This winter when the rains come, we'll find out whether it worked.
K**.
Long lasting coating.
Purchased for my new concrete driveway, used a sprayer to apply, you can use a roller to is you wish. Went on easy and 2 years later the rain still runs off.
G**A
Bad batch? Many solids in container.
I was disappointed to find many white gelatinous solids in my 2 1/2 gallon container. Vigorous shaking for several minutes did not dissolve the sinus. Outside temperature was a nice 75°. When emptied a significant amount of solids remained in the container. I doubt my waterproofing treatment will last as long. Very disappointed. Included is a photo of the solids in my funnel.
K**B
Impressive results that last
I am going on the third year after treatment of my driveway and I am very pleased to report the protection is still there and has made a remarkable difference. I have a long fibre-crete driveway in SC. The summers are long and hot and there is intermittent rain. The finish job on my concrete was never pretty to begin with so the surface is rougher than I would have liked which leads to shading and surface inconsistencies, pockets for water to collect which leads to mold growth and dirt collection. Not great. I decided to seal a bunch of test areas on the driveway to see if that would help. I applied 5 gallons of this product 2 summers ago. I stuck to doing entire driveway squares so it wouldn't look ridiculous. Now going on my 3rd year you can still see the marked difference in the way that the treated squares of concrete repel dirt and mold due to accumulating water. The photos I included show the difference between treated and untreated areas. Keep in mind my concrete has always looked very shaded due to the way it was finished in the first place so don't judge the results by this ugly shading -that's just part of my concrete. This product didn't cause any additional shading. If anything, it lessened the visual impact of the original shading in the concrete. For sure every square that I have treated is much whiter and cleaner looking than the untreated squares. More like what it looked like immediately following the power washing that I did prior to application 2 years ago. I will treat the remaining squares this year and then reseal the original test squares. Great product.
D**E
Works as advertised and easy to apply.
After power washing my dirty driveway I applied this sealer. It was easy to apply with my garden sprayer. Once dry the driveway looks great. Rain water beads up, yet it is not slippery at all. Easy clean up with water.
C**U
Vraiment excellent!!
Le béton de mon vieux balcon (30ans) absorbait l'eau tel un papier essuie-tout. Regarder sur la photo!! L'eau perle sur le béton... Vraiment trop bon.
J**G
Good product
I like the product. it works well. this was the third bottle that i had purchased.
S**.
Waste of money
0. Protection on concrete 👎
M**S
No endurance
Would not buy again. Did not even last a full year.
Trustpilot
2 weeks ago
5 days ago