I recently bought a tractor from the 50’s and as soon as I got it home I noticed I had a tire leaking, and it would be $275 to have someone come put a tube in it. I asked around if there were any good tire sealants that were up to the task and basically got told by everyone that they are a waste of your time and money. Well….I’m stubborn and I don’t always listen to others, so, I did a little online research and decided I wanted to try your product. I bought a gallon from a farm store and pumped it in the tire. As I was airing the tire up I could hear the leak and then it stopped just like that! It’s been a week, I’ve been using the tractor and it’s holding pressure just fine. Thanks for a great product!