Slime 10207 2-in-1 Tire & Tube Sealant Puncture Repair Sealant, 2-in-1, Premium, Prevent and Repair, suitable for all off-highway Tires and Tubes, Non-Toxic, Eco-Friendly, 1 Gallon jug

I use this is tractor tires and it works great. If the Slime won't stop the air leak, you should go to a new tire.

This stuff does exactly what it says it will. We have a lawn tractor that had a persistent issue with one of the front tires quickly going flat no matter how often or full I pumped it back up. We have a lot of small paddle cactus plants growing on the property and they have very stiff and very sharp spines. There were probably numerous punctures in the tire from those and this stuff fully sealed it off such that I haven't ever had to pump up that tire again. I'm gonna squirt the remainder in one of my bicycle tires that keeps going flat. I definitely recommend this stuff!

We live in an area with mesquite trees that shed limbs with 1" - 2" thorns. We've spent time tearing down tires and repairing inner-tubes on the cart and lawn tractor. Then we tried the green Slime. Very pleased with the outcome. Easy to apply, and so far its been very effective. In fact, on one occasion I pulled thorns out of a tire before I used the Slime, so I clearly saw the source of the air leak. After applying Slime the tire has held air and hasn't needed anymore attention. Suggestion: the stem removal tool that comes on the lid of the bottle is not effective on all tires, I suggest that you order a stem removal tool. They're inexpensive and if you need it, it'll pay for itself in one use.

this worked initially for a flat bike tire, but after a couple of months, the tire went flat again.

Excellent repairability results with my favorite basketball, which is prone to leaking air from the vent valve. Good value for money.

Works especially great for small tires, stops small leaks so they are always ready to use.

Why did you pick this product vs others?:After some research, this product seemed to be specifically for my needs. My small tractor, wagons, etc. are subjected to thorns, cactus, and other hazards. I needed to patch 4 tires on my S100 tractor. The first three tires sealed on first try. One of the rear tires, needed a couple tries. Wasn't sure how much to put in the tire. The tires are now holding air for 2 weeks now. Next is the wagon, it has one tire. I ordered another bottle for my wheel barrow and wagon. I do have a tire patching kit, but this seemed less intrusive yet simple. It works!

Bought this two years ago and put it in my bike tires. Flash forward 10,000 miles and I just got my first flat, but was saved because I had this in the tubes. I noticed my rear tire was soft while working on the bike, so I refilled it to 105 PSI. The next day while riding I heard a hissing noise, stopped and looked at my rear tire and saw slime leaking through a pin hole in the tire. After a few seconds the leak stopped and I continued on my ride for another 20 miles. Next day I went out again but this time the tire went flat. I should have changed the tube after seeing this stuff leaking out a hole.Bottom line is this saved me on multiple occasions from having a flat. That being said it won't stop huge holes and is not a long term solution if you get a leak. But, it will save you from flats you won't ever know about and flats you will know about.If you see it leaking out and then stop leaking, you'll probably be able to continue your ride, but should change the tube to be safe.