SIKA Sikaflex Crack Flex Sealant, Gray, High-Performance Textured Polyurethane, Self-Leveling, Waterproof Sealant for Horizontal Cracks Up to 1 in Wide, 10.1 fl oz,

I bought this crack sealant because weeds kept growing between the cracks in the concrete around my garage. I cleaned out the cracks and applied the sealant, and I was impressed with how easy it was to use. It self-levels nicely and blends in surprisingly well with the existing concrete. Right after applying it, I sprinkled a little dirt over the surface to help it blend in even better with the surrounding concrete. The next day, it had hardened, but I could still feel that it had some flexibility, which should allow it to move slightly with changes in temperature and stress. I originally purchased just one, thinking that would be enough for the cracks around my garage. After seeing how well it turned out, I’m now planning to use it to seal the cracks throughout the entire front area of my house. So far, I’m very happy with the results. Easy application, good appearance, and it seems to have the flexibility I was looking for. Definitely buying more!

I bought a house with a cement patio around a pool. There were a few sizable cracks in the cement. The quotes to repair or replace cement ran from 500 to 10k. Got a quote to resurface with rubberized garage floor coating and was quoted 30k. The pool man patched the cracks and a year later the repairs were cracking again. I found this and thought id give it a try. It was easy to apply with a caulk gun, filled in the cracks and dried quickly. Looks much better than the cement patch and seems to be holding up very well.

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

easy to use and self leveling, will purchase again

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 installed this product on a 20 x 40 in ground pool between the coping and concrete deck. The key is your preparation work. Dug out all the old grout sealer, wire wheeled down to the bare concrete. Used foam backer rod. The best part about this sealer is its self leveling. No need to tape off if you take your time. The finished product is absolutely perfect. It transforms the look into a brand new pool. What a difference!! Also cured beautifully. Highly recommend.

Jay Fray delivering the balanced truth about this SIKA Sikaflex Crack Flex sealant in gray that provides decent sealing capability with some performance limitations! Purchased this SIKA Sikaflex Crack Flex gray sealant for concrete crack repair and sealing applications on construction projects and foundation maintenance work. The sealant performs decently for basic crack sealing though doesn’t achieve outstanding results. Adhesion quality works adequately with sealant bonding to concrete surfaces reasonably well for standard crack filling applications. The bond proves sufficient for typical residential repair work without exceptional strength. Flexibility appears acceptable with cured sealant maintaining some elasticity allowing minor concrete movement without immediate cracking. The flex capability works for normal expansion and contraction cycles. Application consistency proves workable with sealant that dispenses from tube without excessive difficulty and smooths reasonably well during tooling. The material handles adequately during application process. Curing time meets reasonable expectations with sealant setting within advertised timeframes and achieving usable hardness for protecting sealed cracks from weather exposure. Where this sealant loses stars includes performance that’s merely decent rather than exceptional, coverage rates that require more product than ideal, or durability questions for extreme weather exposure. For basic concrete crack sealing requiring functional repair without premium performance demands, this provides adequate results at reasonable Sika brand pricing. The gray color matches concrete reasonably well making repairs blend acceptably with existing surfaces for typical maintenance applications. For standard crack sealing on residential foundations or concrete surfaces, this delivers workable results when perfect repairs aren’t critical. Jay Fray verdict: Decent crack flex sealant providing adequate concrete sealing for basic repair applications. Functional Sika product that works without delivering exceptional performance!​​​​​​​​​​​​​​​​

I filled at least 100 foot of cracks in my drive way after using a crack chaser grinding wheel and SIKA flex sealant I have used other brands but for the little extra cost sikaflex sets up faster and dries quicker than 2 other brands I have used which helps to prevent anyone from smearing and tracking wet sealant across the cement.

Good product although a little expensive for the application

Used on garage floor crack that extended from one side to the other. I used my mini grinder with a cheap diamond blade to chase the crack, then vacuumed the dust. The SikafIex sealant went on very easily after warming the tube on an old heating blanket. It's kind of gooey, but levels itself into the crack after a few minutes. I had watched a YouTube video on using this product which suggests to sprinkle some Quickrete on the repair to blend it in with the older concrete on the floor, and I found this works great, only don't sprinkle it with water like the video suggests. Just leave it alone for awhile and then whisk it off and vacuum after the Sikaflex has set up a bit. Was hesitant to start this job, but it really was pretty simple to do with the Sikaflex Concrete Crack Sealant. Make sure you wear gloves and old clothing. UPDATE - 1-1/2 year later: The Sikaflex has performed perfectly, however I would skip the Quickrete if I were to do it again. It turned kind of brownish and did not look like concrete. Next time I will just use the straight Sikaflex, since it does look like light colored concrete.

solo que no hay manera de ver la caducidad del producto, lo mandan muy limitado

Llegó prácticamente seco

works well, but it is very fluid and you end up using more than you think you will if you have many cracks to fill.