Foam in tires

In the dirt bike world, it's called a Bib Mousse. Never thought about something like that for a trailer tire, and I've had many blowouts with ST tires.

I put Nitrogen in my tires every time I add air. For those of you who don't know, regular normal every day air that you breath and put in tires and pool toys and anything else is 78% Nitrogen

Yes,
It's called Fix-a-Flat:

Back when I worked construction our skidsteers and UTVs all ran foam tires. I couldn't imagine the rough ride going down the road on a set of rocks.

At my scrap facility we ran foam fille tires, in loaders and rock trucks, that never exceeded 30 mph.
Is that how you drive?

I had the same initial reaction as carringb. I too didn't think you could use foam filled tires on highway speed tires. I do know on a UTV they prevent flats but, give a very rough ride as the tires are very unforgiving of logs, bumps, rocks, Etc.

Foam filled tires can't be used on the highway. If he's looking to foam-fill a construction trailer that doesn't see highway speeds, then it's possible.

Forget anything a dealer tells you that isn't written down in legalese.

Ask a pro tire guy what he thinks of that idea (mine cusses if I bring up the subject).

And Bumpyroad, I horselaugh at the people selling N for tires. "but the O will leak out and the N wont!" sez they. Well since we all start with 80% N anyway, why not just refill when that pesky O leaks out and youll have almost 100% N eventually anyway. Duh.
Science Matters.

Tire manufacturers wouldn’t recommend this if it worked? How much did the dealer charge for this snake oil?

I'll sell him some Nitrogen to put in them so he will be safer.
bumpy