flat tires- Foam?

MI-Bill

Member
have several carts and wagons used once or twice a year and the tires are always flat. Read somewhere where a guy filled tires with foam? I think he used cans of expandable foam? Worth try? on old no account tires?
 
A gun club that O belonged to had a 7 foot Ford 3 point mower that I used my tractor to mow with. It had 4 8 inch tires that had tubes in them and they were always going flat. I took them off and one of the guys took them to a tire shop where they filled them with foam. Never had a flat again. I always wondered if they used cans of foam or had a machine
 
They use a machine, and it is extremely dense and heavy foam. Son in law has it done on his full weld demo derby cars.
The canned foam is too soft.
 
I had th he front tires on my Massey 35 foam filled. The only thing I don't like about them is it makes for a rough ride on bumpy ground there just isn't much give to them.but no more flats ever gotta take the good with the bad
RICK
 
I run low pressure on my mowers for a soft ride. Fronts on ZTs are especially vulnerable to going flat. Decided to buy a pair of foam filled tires (manufactured that way) and had the same problem. Hard as a rock. However, on a trailer, I'd go for it in a heartbeat and on my wheelbarrow I have one too....works great.
 
I've never tried the canned foam, but have heard it will not work.

There are tire shops that can foam them.

It is somewhat expensive, they are heavy, don't like any kind of road speed as they are hard and out of balance. But no more flats!

If the tires are old, rotten, damaged, best replace them first. Foam is a permanent fix for flats, but still needs a good tire around it. And, once foamed the tire will have to be cut off the wheel, not a pleasant job.
 
Bill -- caned foam insulation sometimes works in low pressure lawnmower tires. I know I have cleaned a lot of it out of them when it did not work and put tubes in them. In the years I owned a tire shop, I never seen it work in tires carrying a lot of weight.
 
I used to have foam filled tires on my Bobcat. It rode rough, but never had flat. Having tires foam filled is about the cost of a new tire. On my wagons and implements that aren't used a lot, I buy the pink anti flat stuff in 6 gal. buckets from the Tech Tire repair guy. It works pretty good. I don't have many flats.
 
BTDT and found it did not work well at all. The foam you can buy is made to fill cracks etc not hold weight of any type so it does not hold up well if at all.
 
Mi,
I tried filling a plastic ball bat with caned foam. It didn't cure. I'm thinking it has to be exposed to the air.

There is a place in town that can fill tires with foam, rather expensive.

I would try finding solid rubber tires. They make some for wheelbarrows. I put some on pressure washer.
 
The stuff in the cans is too soft. That is step one. It will not cure because it works with moisture in the air. The Real tire foam works great but is rock hard and Very heavy. I have a set for my garden tractor I got from a friend.WOW are they heavy. Ride like a brick too. Took them off, just couldn't take it.
 
I tried filling some of those cheap 10" Harbor Freight tires that are always going flat with Great Stuff canned foam. Total disaster.

Everything looked fine after I sprayed the foam in. Had the valve stem hole plugged, no leaks. When I came back the next morning, there was expanded foam EVERYWHERE! It came out any little crack and crevice it could find, around the bead, etc..

There was absolutely NO foam left in the tires. It had all pushed out. Tires were completely clean inside.

I don't know how they make it work on youtube but apparently they do.
 
The canned foam for cracks and such, Great Stuff and other brands, works great for its intended purpose. But it's polyurethane, same as Gorilla Glue only foams more, and it's brittle. Fill a tire with it, put weight on it, it crushes. The professional tire-filling foam is installed under the tire's specified pressure, then cures. Yes it rides rough, and yes it's heavy, you don't want it in your dirt bike. But no more flats. Recommend instead, for your wagons, put tubes in the tires and add Slime or equivalent. These sealers will corrode rims, that's why the tube, keeps the Slime from contacting and eating the rim.
 

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