Best Concrete Sealers of 2026

"After trying several other fillers, I found this one and it truly stands out. It bonds well to concrete, looks the most like the real thing, and creates a seamless repair. This is the only filler I'll use from now on!"

"I purchased this sealant to fix cracks in my driveway and around my basement window. It was very easy to use and left a clean, professional finish. The seal is solid, and I noticed no leaks or crumbling afterwards."

"I was dealing with weeds sprouting through my driveway cracks and this product solved the problem completely. It’s simple to apply, works perfectly, and I even bought more to tackle other areas around the house."

"I used Miracle Sealants 511 Impregnator on my tile floors and found the application incredibly easy, with minimal odor and effortless cleanup. The product delivers excellent results—water beads up instantly and my grout resists stains much better than before. I did notice a slight color shift in lighter grout, but overall, I’d recommend it for anyone wanting reliable, hassle-free sealing."

"After three years of applying this sealer to my limestone garden blocks, I’m impressed that no mold or fungus has appeared, and the blocks have retained their original bright white color. The application was straightforward, and the coverage exceeded my expectations. I highly recommend this product for long-term outdoor protection."

"My granite countertops used to absorb liquids and stain easily, but after using this sealer, they’ve become completely waterproof. I’m very satisfied with the product’s effectiveness and protection."

"I found this product incredibly easy to use, and it did a great job filling in gaps and cracks around my front door. After application, it was barely noticeable and I’m planning to paint over it soon for a seamless finish. I’m repurchasing, mostly because a bit dried out when my son left the can open."

"After years of dealing with a leaky door threshold, I used this and was amazed at how simple it was to apply. The product sealed perfectly and I’ll definitely use it for any similar repairs in the future. Just keep in mind, you might need more than one can for bigger projects."

"I tried this paste on a fiberglass fountain with large cracks and it worked flawlessly. The thick, adhesive formula made patching easy, and it has remained water resistant even while submerged. The container is small, but it was sufficient for my project."

"I used this product on an outdoor storage box, and now water just beads up on the wood. Make sure to use it in a well-ventilated space because the fumes are quite intense, even when used outside. Overall, it does exactly what I needed."

"After trying many other brands for various projects, I found that Flex Seal outperforms the rest. It really is as good as they say. The gray color blends in well, and after giving it a few days to cure, it becomes tough and UV resistant. You might need a couple of coats, but the end result is totally worth it."

"I bought Flex Seal spray to seal the joints and ends of my gutters, and it worked perfectly. The material quality impressed me, and it covered everything easily. I have no more leaks in my garage—this product does exactly what it promises."

"I found this product incredibly simple to use and there was no mess at all. I would definitely recommend it to others!"

"I applied it around the faucets on my stucco house and it has done a fantastic job keeping bugs out. Works just as described."

"Unfortunately, the foam didn't perform for me—it fell apart before I could even try to seal the leak. Very disappointed with its durability."

"I’ve used this caulk for everything from sealing my bathroom to patching up the kitchen sink, and it’s performed flawlessly. The application is simple, the finish is clean and clear, and it stands up to water and daily use. I especially like that it resists mold and mildew in damp spots. It’s definitely a go-to product for any sealing job around the house."

"I’m genuinely impressed by the Gorilla Waterproof Caulk & Seal. It glides on easily, bonds strongly with different surfaces, and dries to a professional-looking finish. After weeks of use, the seal is still perfect—no cracks or discoloration. It’s reliable, durable, and I always keep it handy for future projects."

"The Gorilla 100% Silicone Caulk is just what I needed for my small DIY projects. The tube size is convenient, the thickness is just right, and it dries very white and smooth. I used it on my bathroom fixtures, and they look brand new. Great value and performance from a brand I trust."

"I bought these microfiber pads for sealing my quartzite countertops, and I’m really impressed with their quality and feel. They made the job super easy, and I have plenty left for future projects. I’d definitely recommend them for a variety of uses."

"These pads worked exceptionally well on my kitchen counter tiles. They soaked up the sealer and made application a breeze. I’m happy with how smoothly everything went."

"I used these to apply sealant to my slate floor, and they were thick, sturdy, and left no fibers behind. I’ll never use a brush again for this kind of work!"

"After three harsh winters and rainy summers, the sealant I applied to my aluminum shed is holding up without any leaks or corrosion. Even after several years, it shows no signs of wear, just slight yellowing, which doesn’t bother me. I also used it to patch a spot in my garage to keep out mice—they haven't returned since. This stuff works!"

"When I needed a solution for a leaking gutter seam, I picked up the Gorilla sealer. It was incredibly easy to spray on and sealed the area perfectly. As long as the weather is dry, it applies smoothly. I’ll definitely buy it again if I need it for another project."

"I tried the Gorilla Waterproof Patch & Seal Spray for patching small rust holes in my gutters. It was super easy and fast to use, and it worked well on different surfaces. The only minor issue was that I needed a couple of coats, and the nozzle can clog if not cleaned, but overall, it's a handy fix for quick repairs."

"I found this product simple to use and it gives me a solid, long-lasting bond. The color blends nicely with the existing mortar, making my neighbor's wall look fantastic. I was able to finish the repair quickly, and the results are still holding up great!"

"This caulk is easy to apply and does exactly what I needed. I appreciate its attractive appearance and durability—even in heat, it holds up well. I’ll definitely buy it again if another repair comes up."

"I tried various brands, but this one’s “beige” shade was the best match for my older block wall. It was also much easier to work with compared to others, and I liked that mistakes could be wiped off with water if caught quickly. The only minor downside is the color is a bit bright at first, but it darkens as it dries."

"I used this sealant on my shed, brushing it especially on the seams. After weeks of heavy rain and snow, I checked inside and everything was completely dry. I’m impressed with how well it works and would absolutely buy it again."

"Applying this sealant to my wood planter boxes was a breeze. It’s a thicker product that covers well, creating a watertight barrier. It dried quickly and even worked perfectly on a leaking cement birdbath. Very effective and easy to use."

"While this product was easy and satisfying to use, I found the package size smaller than expected, and it didn’t fully solve a persistent leak on my porch. It might work better for other situations, but for me, it wasn’t the complete solution I needed."