Bought a house a few months ago and the previous owner left a wheelbarrow with a flat tire. Was going to get a new tire for it but then I saw a stupid “expanding foam hacks” video on Facebook that auto played and they put foam in a tire to get it “inflated” again. Has anyone done this and had luck with it? Out of curiosity and to save my cheap ass a few dollars.
I had the exact same thing happen to me. And what I did was take it apart and put a bicycle patch on the hole. Good as new.
It might fill the tire and make it round but it probably won’t hold much weight. If it does hold weight it would probably be a rough ride to push that thing around anything that isn’t smooth ground. A tire patch like @darkwing_duck suggested or a plug would probably give better results.
I’d recommend just going for a new wheel and tire. Harbor Freight or your local equivalent probably has one that will fit with a solid tire under $20 and never having to worry about flats or airing it up is worth it.
There’s also a solid chance the tire is really old and doesn’t have much life left anyway. By the time you patch it a couple times, you’ve probably wasted more than $20 of your time.