Rated 4.6 out of 5 by 21
Rated 5.0 out of 5.0 by EastNashMan Great product
Great product! Not sure what to say about it.... it works. Easy to apply using a caulk gun, and it sealed my concrete perfectly. Used it on both the interior and exterior of my basement to prevent leaks. Had it there several months now and haven't seen any leaking. Now I am just trying to fill the minimum required characters because I have nothing more to say about it.
December 4, 2015
Rated 4.0 out of 5.0 by Panaman fixed my crack
I had a big nasty crack in my concrete driveway, I used this product to fill the gap. The directions say to just put it down on the crack with a caulking gun and let it sit. It is self leveling. After the fact I kind wish I would have used a putty knife on it to level it out. It kind has a little pump where the crack was. Look at my pictures and you can see what I am talking about. It seems durable though, and I don't expect it to fall off or anything. All I did for prep was sweep the cracked part of the driveway with a broom.
September 25, 2013
Rated 3.0 out of 5.0 by ST OK but tedious with caulk gun
This product performs as advertised. My only complaint is using a caulk gun can make this job slower than it should be job. I used it for expansion joints and it was difficult to do a professional looking job because of the nature of using a caulk gun (unless you use one regularly). I went though 2 tubes of this product before I stumbled across another brand that comes in a 32 oz plastic container. You squeeze it out like wood glue. I simply found the 32 oz container much easier and quicker. It also leveled out quicker than what came in the caulk tube. You may be perfectly fine with using a caulk gun, but I preferred the plastic container with the resealable cap.. It was also much cheaper.
March 30, 2014
Rated 4.0 out of 5.0 by DaneDame Sika seals shallow sidewalk splits
Sikaflex flexible sealant is a cinch to use, and provides a nice, durable repair to those smaller cracks that develop in your sidewalk or driveway. I also like that the sealant, once cured, remains flexible, allowing for continued seal, even with seasonal movement of the concrete.
A word of caution, however-- Sikaflex does work on cracks up to 1" wide, but only up to 1/2" deep-- a very small window of usability, in my opinion. If the cracks being repaired are deeper than 1/2", then you'll have to find a different product..
For SMALL sidewalk and driveway repairs, I'd recommend this product.
August 6, 2013
Rated 4.0 out of 5.0 by Blackbeered Not So Long-Term
I use this product to fill the "not-so-hairline" cracks developing in my exposed aggregate driveway.
The best feature is its 'self-leveling' attribute ... squeeze it not-too-carefully along the crack and don't mess with it. It 'levels' so well, you'll probably need to go back over the cracks in a day or two.
Needs improvement areas: the 'sand' color is too bright for exposed aggregate; its 'plasticity' lasts only a few years after which the normal expansion and contraction on the aggregate will crack the seal and you'll need to reapply.
But I haven't yet found a better product.
November 13, 2013
Rated 5.0 out of 5.0 by soldbydon Best In Class - Have Used Sika for 5 Years
I've been using this product for over 5 years to seal driveway cracks and it dispenses and holds up much better than 2 similar products I have tried. The competing products are harder to pump out of their cartridges (which is important if you are using a lot of tubes) and they do not have the flexibility and long-term elasticity of the Sika sealant. Be sure when you use this that you first fill the crack with a pre-filler (my favorite is limestone base because it compacts) else you'll waste the sealant down the crevice of the crack, which is expensive. Also, if you live in a cold climate, never let the sealant fill above the level of the concrete, else your snow shoveling equipment will snag it and pull it out.
June 4, 2013
Rated 5.0 out of 5.0 by pegnc Fix It Once Sealant
We have a crack in the concrete pad that connects to our asphalt driveway. I have repaired it several times but it always cracks open again allowing water to penetrate. Sikaflex Crack Flex Sealant has all the features that I need. It is very easy to use, just apply with standard caulking gun, it is textured to blend in, self-leveling and waterproof. This product has elastic technology that allows for crack movement. I'm hopeful that I will never have to fix this crack again.
November 29, 2013
Rated 5.0 out of 5.0 by Alleycat Did the job better
I have had issues with basement wall water leaks from all of the rain we've had in GA this summer. I used this product to seal a few porous or cracked concrete wall areas of my basement after trying other polyurethane crack sealers without the sand. It worked well and looks good. This product runs less and looks better than the others without the sand in this application. I also used it for another basement project, sealing the joints where basement walls meet the floors for radon mitigation.
September 16, 2013