Sikaflex-410 Asphalt Sealant, Black, self-Leveling Hybrid sealant for Filling Cracks, for Private Asphalt driveways, roadways, Pavement, 9 fl.oz. ...

I like the self leveling quality of this product. I filled 1/4" wide cracks and some 2" shallow divots in my asphalt driveway. I waited for sunny hot weather and applied product to very clean surfaces. It leveled out well but not runny. I overfilled just a little to seal the repair better from ice getting down into the repair during winter freeze/thaw cycles. Cures to a hard but rubbery patch in a few days. But could be walked on in a few hours. It's been a 2 months now and still looks new with vehicle traffic. I'll update this review after the winter.

Easy to apply and for narrow cracks seems to work well. However, the sealant continues to come forth from the tube, even after pressure is taken off the caulk gun. This continued throughout the entire tube, and can only be prevented by covering the nozzle between application locations. On the bright side, after one week material is performing perfectly with 30+ temperature changes.

This stuff is by far the best asphalt crack sealer on the market. Self-leveling, dries quickly, and does not come off. Asphalt sealer even sticks to it. Sika knows this. They are not stupid. But, they are cheating on the ounces in the tube. Not by much, but enough to get you aggravated. FILL EM UP SIKA !!!! THEY ARE NOT CHEAP TO PURCHASE !!!!! Stop being greedy. You have the market cornered in everything else. It won't break YOU'RE bank, that's for sure.

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 #2 After 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.