SIKA Sikaflex-410 Asphalt Sealant - Black, Self-Leveling Hybrid for Filling Cracks in Driveways & Pavements - 9 fl. oz Cartridge - Durable, Fast-Acting, Weather Resistant (Pack of 6)

I haven't seen this go through a Winter yet but here's my history of using driveway crack fillers. I've used the melted in stuff. I've pounded in the cold asphalt. I've used the latex cold pour garbage. I've used trowel patch. They all claim to have elasticity galore. Within about two months, before Winter even begins, they all fail. Some of the melt in stuff remained in place but after that hardens over time, it too fails. You also have to be sure to melt it thoroughly. THE ONLY ONE TO LAST THIS LONG WITHOUT ANY FAILURES IS THIS STUFF BY SIKA!!!!!!! I've filled big cracks and small. Once cured, if you push on it, it acts just like rubber!! It adheres like rubber! It's been though the hot full sun and the colder early mid Autumn nights and so far, no failures!! If it lasts the Winter, I'd say it's about as good as the hot rubber melt in. For larger cracks I do use the foam filler because there isn't much in a tube so big cracks will use alot. But the stuff is amazing. Sika is serious about it's products. Will update next year if I find problems but so far, it's proving to be the best crack filler I've ever used. I'm not paid for this review. I'm just shocked at how well it's doing after years of effort, false claims and wasted time. Be sure though to clean out the crack thoroughly. I use a wire brush to abrade the surrounding surface and try to brush out as much dust and debris as I can but the abrading I think makes the difference for bonding. Just saw complaints about how shiny it is. Wait several days for curing, then take a lightly abrasive sponge and lightly scuff the surface. It will dull it down. In time, it dulls anyway.UPDATE AFTER FIRST WINTER:When a crack was properly cleaned out, it lasted. Because I had debris of other failed driveway patch such as areas of trowel patch or even cement epoxy around the edges of cracks, some areas did fail but that's due to my fault. We were rushing to get it done due to other Summer work we had to do but many of them didn't fail. I just ordered another 6 pack. To be fair though, I advise that if your driveway was a patchwork quilt like mine, get onto youtube and look up how to do diy hot asphalt crack filling. There are people on there who heat up the box of hot rubber crack filler you can buy at home depot ($43 for 30 lb?), make a spouted can out of a coffee tin and attach it to a metal post to pour hot rubber into cracks and they end up with a very nice job. I have other jobs this year so am using more of this but if you have a ton of cracks, try the videos on youtube. Fix it with Cronk is one of the guys. I'm not paid for giving that info.Update #2After further investigation of cracks, here is my recommendation in order.1. For alligator cracks or ones that aren't too wide or deep, thoroughly heat the melt in stuff after cleaning out with wire brush and blowing out the crack (I use the heat gun). Then melt it in so it's literally dripping. Where the adhesion is needed is on the sides. Drip it onto the sides and fill to JUST BELOW the driveway surface. That's on the directions, which I never bothered to read. I have pulled out unmelted stuff which is why the crack failed. Six years later, a badly alligatored patch that I used the melt in to fill is solid as a rock. My husband used a propane torch on that. READ directions.2. Hot rubber for large cracks - I haven't tried it yet but is likely the best filler for the larger deeper ones.3. Sika - adheres well, very flexible, like rubber. It's longevity is largely dependent on how well the surface is cleaned. I've been smearing it over the top of the crack for a smoother look. I think it's supposed to fill inside the crack, not be smeared smooth. When product is left on surface, it may be prone to failure.Sika buys you some time while you use the other two options but isn't going to be as strong as them.4. Trowel patch.. would only use in an area that doesn't see alot of sitting water or hot afternoon sun. Will last about 2-3 years and then break off in bits, look bad and be a pain when you want to use something else and have to spend time chipping it away from the crack. But it does smooth things out nicely, for a little while.

This is the best product I have ever used for repairing cracks in asphalt. I have tried pourable products and other types of crack filler that are applied with a caulking gun but by far this has been the best. Other products I worked in with a putty knife and brushed the surface with a brush to blend in, but this product did not require that. After applying the product it started to flow deep in the cracks after a few minutes which is what I wanted and I was able to reapply and fill the crack completely. Other products filled the crack but did not go deep down to the bottom of the crack but this did. It hardened up in a few days but was still flexible. Repairs at the apron of the driveway are lasting where other products failed. I love this stuff and am never buying anything else.

I bought this to fill the gap between my fireplace and my pine floors. It works perfectly.

I live in Pennsylvania -- hot summers, cold winters with snow and ice. Tried all three brands. Sikaflex was the only one that did not develop cracks (within the material itself). Stayed in tact in the cracks. The only downside is that it takes a very long time to cure -- multiple days. Maybe the additional durability and the cure time are related.

I've previously used the gallon jug of crack filler from a big box but that tends to be difficult to manage (you have to hold up the weighty gallon jug of stuff) and hasn't done a great job year over year. The purpose of crack filling is really to inhibit water from getting in cracks, freezing during the winter and expanding the crack, not so much to actually "repair" the crack.So this year I decided to go another direction and found this product. First, it's much easier to apply more finely than the gallon jug of stuff, because the product size is smaller and also you can more accurately dose with a caulk gun. Second, it flows a lot better than the big box filler - I applied this for the first time on a ~ 75F day and noticed that I'd have to refill portions I'd already gone over because the product was flowing down into the crack. Unfortunately I have several cracks, some of them wide and deep so I'll have to order a LOT more of this.Other pluses I noticed were that the product tends to lose its surface tackiness and plasticity pretty quickly compared to the other stuff. This product flows into the cracks more readily but also firms up quicker. The other product seemed to stay plastic (flexible) for a long time after application especially in warm weather.Downsides - it's pretty expensive for what it is vs. big box stuff, but if it lasts more than a couple seasons, it's worth paying extra especially in reduced labor. Also, if you're applying a lot of this, use of the caulk gun can get tiresome. Lastly, one of the 4 bottles I ordered initially tended to leak out the back, gunking up the plunger on the caulk gun. Not enough to be a giant mess, just a bit of a hassle.Let's hope this product performs better than the off the shelf stuff.

Seems to work well. It is self leveling (sort of), but I like to run a blade over it to make it flatter. It will keep running into deeper cracks which I like so it fills the whole crack, not just the top. keep in mind you will need to go back and top it off later. I used it on one crack that was bigger than recommended 3/4" and it still seems fine... It used a lot of one tube.