anyone hve an idea on how to make a run-flat tire?

[scotty.rodgers]

have an old max that's going to be a trailer but the tires are badly dry rotted. new ones are 150 each here in ak so was thinking of repairing them and making then a solid core. anyone ever done this or heard of it?

[foxvalley]

There are certain closed cell urathane foam materials out there,that a guy could try to inject into the stem,not sure what type of foam is needed, though. Just watched a program about making solid tires,and they used this type of foam. Most of them are 2 part,and expand when mixed together.
I'm guessing the foam is very expensive, and injecting into rotten tires might be throwing good money after bad.
There has to be a set of used tires out there cheap if a guy looks hard enough. Good luck with it.

[amphibious drew]

Look up tire balls. However, they may be as much as new tires. I really don't know.

[Bazooo guy]

Why not use tubes??

[ARGOJIM]

If your doing the balloons in your avatar you would be better off buying new, an ag shop could get them filled for you but the weight would hurt you. rims and tires are the best bet, there are some in the classifieds forum, if you have rims and tires tubes are the cheapest for now.

[gearhead1937]

I remember reading somewhere on here where someone filled with a special mix of antifreeze and maybe silicon gel?? Not sure gel is the correct term, but its been too long & i can't remember..... But i know there is something on here about it.... Yeah, that doesn't really help much.

[Rock Doctor]

Tire Sealant

1 part Latex mold builder
1 part Slime tubeless
1 part cheap antifreeze
2 parts water (Work your way up. 2 parts water may be to runny/thin)
Some "Glitter" to help plug holes

RD

[Aussie Iron]

Tire Sealant

1 part Latex mold builder
1 part Slime tubeless
1 part cheap antifreeze
2 parts water (Work your way up. 2 parts water may be to runny/thin)
Some "Glitter" to help plug holes

RD

That's it. I've had tyres that you could put your finger through the cracks in the side wall, these were just leaking when I put it in and it just felt like it had a tube inside and they are still being used. Start with about 300 mls per tyres. If it still leaks I've put 100 mls straight Latex in on top of the mix and run it around. That worked.
Dan.

[covey_bob]

what is slime tubeless?

[spookum]

Tire Sealant

1 part Latex mold builder
1 part Slime tubeless
1 part cheap antifreeze
2 parts water (Work your way up. 2 parts water may be to runny/thin)
Some "Glitter" to help plug holes

RD

Silly question: how does it work at below zero F? Does it pool on one side of the tire and freeze?

[Rock Doctor]

what is slime tubeless?

SLIME – Worldwide Leader in Tire Care – Repairing a flat tire? Slime Tire & Tube Sealant » Catalog » Catalog Products » Slimepro Tubeless Sealant- For UST and Conversion Bikes (10112)

Silly question: how does it work at below zero F? Does it pool on one side of the tire and freeze?

My guess is the Anti-Freeze keeps it from freezing. Also, I believe Tire Slime does not freeze, although it does thicken up a bit.

RD

[phabib]

There are places that will fill your tire with foam and make it puncture proof. I priced it a couple of years back for another project and it was quite pricey, although these are small tires so it may be more affordable. I think it also makes the tires heavy and hard, not something desirable when you're looking for the tires to help you float and absorb shocks.

[johnnova]

we have a machine at work for packing our equipment when we ship it and it uses a urethane 2 part foam. we have done some fun stuff with it and if you spray it into a tire it will expand and fill the whole tire up but I bet it would ride like crap. you can do the same thing with the foam they sell for insulating your house that comes in a red and yellow spray can.

[PlumCrazy]

Tire Sealant

1 part Latex mold builder
1 part Slime tubeless
1 part cheap antifreeze
2 parts water (Work your way up. 2 parts water may be to runny/thin)
Some "Glitter" to help plug holes

RD

HINT:

I use a BIG syringe to put the stuff in the tire, AFTER removing the schrader valve from the valve stem.
Only use HALF of the Antifreeze in the mix.
After you have the mixture in the tire, push the other half of the antifreeze through the open valve stem, it washes all the mixture down/off the threads and the schrader seats better.