FlatOutMulti-Purpose Tire Sealant - Prevents and Repairs Flat Tires, Seals Leaks, Contains Kevlar, 32-Ounce Bag, 4-Pack

The product worked quickly... Application was a front treadless zero turn mower. The tire was not punctured, but likely a rim seal leak. Tire is tubeless. I installed 1/2 bag per instructions, no trouble with the fill tube. Then I replaced the schrader valve and aired up the tire. The tire was sealed within 1/4 of a yard mowed. Still holding after 1 mo.

Updated 2023:Im now on my 4th bottle of this stuff and increased the star rating. Ive got it in all 4 lawnmower tires, both tires on the lawnmower trailer, and in the wheelbarrow tire. Ive never had a single leak since. We've got a lot of thorns in our yard that are hard to see and I'd had my fill of patching them. After seeing how well this worked on the lawnmower, I keep putting it in any yard tire that gets a flat and they all hold air permanently from then ok. The product 100% works as advertised.I still think its pricey (but saves you on time dealing with future flats) and still hate the cheap stem removal tool (luckily I saved the metal one I bought when the original broke on me). I also hate the new container - it refuses to stay upright. But the product itself works so well that its worth overlooking all of these things.Original review:Used in a lawnmower. Have some thorns on the property that occasionally puncture tires, so I often have at least 1 tire losing air. Used to pull and patch, but thats a pain to keep up with.Tried this for a plan B to hopefully stop the constant patching and so far its holding up great after a month. Easy to put in the tires with the instructions.Two downsides:-Cost is a bit high considering usage. I didn't read carefully before ordering, but it takes 1 bottle for the 2 fronts + 1 bottle for each rear. I haven't bought it for the rears yet as I'm reluctant to spend that much more money.-The valve stem remover included is absolute garbage. It barely removed the 1st one when it cracked. Couldn't reinstall the 1st or remove the 2nd at all as it disintegrated. Had to go buy a metal tool from the store mid project. IMO they shouldn't even include it if they're going to out such a cheap one on it.

Good work 👏

Flat Out Keeps Our New E-Bikes Rolling!We recently purchased a pair of e-bikes and are thrilled to hit the trails! Being new to e-bikes, we also wanted some peace of mind when it comes to flats. That's why we decided to try Flat Out Tire Sealant for the first time.So far, so good! Installing Flat Out was a breeze following the instructions, and it only took a few minutes per tire. We're happy to report that after riding approximately 250 miles, we haven't encountered any flats yet!Here's what we're loving about Flat Out:The product claims: Fewer roadside repairs. No one enjoys fixing a flat, especially on an e-bike. Flat Out hopefully means we can spend less time tinkering and more time enjoying the ride (and we have for 250 miles so far!).Increased confidence: Knowing the sealant is there offers some peace of mind, allowing us to explore further without worrying about flats interrupting our adventure.Long-lasting protection: The product claims to last for over 10 years, which is a great value.We'll be sure to update this review after even more miles on the e-bikes, but with 250 miles under our belt and no flats, Flat Out seems like a great way to help prevent flats and keep our e-bike adventures rolling smoothly. We recommend it to any new (or seasoned) e-bike rider looking for some added puncture protection!

My granddaughters' 18 inch rear bike tire went flat. After following the instructions to remove the air valve stem with the included stem removal tool, this stuff only took 3 squeezes to get plenty enough inside to immediately seal the tire as soon as the stem was reinstalled and air added. Amazing. And so much easier than pulling wheels & tubes, roughing and patching the tube leak and reinstalling the wheel. I did in 15 minutes what would take me at least an hour before, and most of that time was just reading the instructions. The actual repair took about 5 minutes. And no mess!

i havent caught a flat in 2 years!!!! and i live in nyc!!!! you must always check tire pressure!!!!! peashhhh!!!!

Easy to use! We had various items with tires that kept going flat such as lawn tractor, snow blower, wheelbarrow. After using this product, no flat tires since! Tip: buy a cheap valve stem remover kit for any tires that may be stubborn. This stuff is a life saver.

I was looking for a less-expensive sealant for bike tubeless setups and came across this. It was definitely cheaper than Stan's and other sealants, but my results have been mixed. First, the pros: good price, long lasting, and sealed larger (quarter inch) punctures. Cons: too thick (couldn't seal tiny air leaks during setup), also needed a lot in each wheel. I'm going back to a more liquid sealant.