Sikaflex Crack Flex Sealant, Gray, High performance, textured polyurethane sealant, self-leveling, sealant for sealing horizontal cracks, 10,1 fl. Oz

Love this stuff!!...little pricey but worth it!!Fills the cracks and looks great!!Easy to use...follow the directions.

I purchased this product to fill in the cracks on my driveway. It was easy to apply and filled in cracks better than the cheaper sealants. I feel this product is worth the extra money

Used on the 1/4 inch control joints on my stamped concrete patio. It did self level fairly well. Steps used:1) Cleaned 2) placed 3/8 backer rod placed in gaps leaving about 1/4 inch to fill. 3) taped off joints to prevent overflow mess 4) applied caulk to top and let it self level- used putty knife to smooth out high spots 5) removed tape after about 10 minutes while still wet 6) While it was still tacky, I dusted with a mixture of sand and charcoal release I had used for stamping the patio. Did this to try and match my stamped patio as best as possible. The gray caulk would’ve stood out like a sore thumb. 7) Blew off excess dust and let totally dry.Pretty happy with it. Took a star off because thought it would level better. Overall nice product. 1 tube just filled my two 11’ by 1/4 inch cracks.Pics attached showing start to finish

Awesome product!I ended up spending on another case as I did not use backer rod until I read up on best application practices.After wasting a case by being impatient and only finished a quarter of my driveway not using backer rod on the cracks due to temps closing in on the cold, I added backer rod on the next case and finished the driveway in full.Good tip, use backer rod and save yourself money.Rookie mistake here! But lesson learned!!!FYI, driveway slope was about 15 degrees and she did not run as I was concerned about that. Re on end staying under the 20 degrees slope as when it softens up, it does get runny.Love it drying quickly, very durable so far until I use the snowblower this season. That’ll tell me if it snags even at all as I tried to keep below the crack, but you can’t always be perfect as sometimes the tip slides slow when applying. I’ll revise this spring to the results. But know I do expect it to possible come loose. I’ll address later and according.Good luck!

This stuff is amazing and absolutely delivers on it's promises! I originally completed this project using the horrible Dap version of concrete filler/seal which was horrible to work with and NEVER set (even after 2 dry 70 degree days) and essentially washed away on 1st rain. I completed the project again with this Sikaflex and it worked perfectly. It completely self levels and fills in the void. The best advice I have is DON'T touch it. Just lay your bead and let it work it's magic. It completely levels and leaves a smooth finish. Then come back and re-fill any voids that may appear. I had used sand then backer rod so I only had one corner spot that needed a little extra fill. I also sprinkle a little of the sand on the still wet seal to add to the concrete look though this Sikaflex already has a nice texture. This stuff has a great look on it's own and I'm so impressed with how well it works and looks. It's now cured and firm, yet pliable to the touch. I should have used this stuff in the first place.

I have a gap about 1" wide between my garage apron and the concrete slab adjacent to it. It looked like it had been filled with something black, maybe tar and it broke up when I ran compressed air over it to clean it up. Certainly not flexible material at this point and already had cracks in it.I had read about this type of "self-leveling" product (which has been used elsewhere in my neighborhood) and decided to give it a try. Although I had some backing, I wasn't calculate how much I would need, so I started with 3 tubes. That got me about 2/3 of the way across the apron - a little better than expected. Not bad for a 1" gap. (Also the slab is tipped 1/2" - 3/4" relative to the apron across it's width so that the edges cross in the middle; water will have to follow the gap ~ halfway to flow onto the slab.)I went to order a couple tubes to finish and in a couple of weeks the price had doubled from $10/tube. Turns out the local Home Depot carries it for around $10.I hadn't worked with this self-leveling product before and it really does flow even more easily than I expected which means your prep has to be pretty good. Although it says it can be "tooled", I had minimal success with that (after 20-30 minutes) - maybe if you work it immediately. I found I had to lay a little less than I thought was needed and go back over it a few minutes to get the level I wanted. There is a little "knack" to using it well, but I got it after using 3 tubes,One thing I did find which is illustarted in the image, when I went back a day later to continue filling the gap, the new material didn't quite blend seamlessly with the day-old material. (See red arrow, and dashed line which traces part of the "seam".) The image exagerates it a bit, but as a perfectionist I notice it. The difefference in height is like 1/16" ... not much frankly. Overall it looks real good to me given the alignment issues.Been in place a few weeks. Interested to see how it fairs over the Western Pennsylvania Winter.

I applied this product in the driveway during summer, it held on really well for 2 to 3 months and then it started to crack when winters approached. I used bake rods when necessary and thickness of the product was approximately half inch.

If you’re still using dry cement or even that liquid quickrete for finishing jobs, you’re making a mistake. This stuff works great and is fairly easy to use. There is a little bit of a learning curve with how wide to cut the opening and how to fill it in, since it self levels. But, it is the best option to fill cracks such as in the mortar between bricks and a house wall, or cracks along a walk way. It hold up really well and doesn’t split.