I wonder what would happen if someone took a small tire, such as the
ones on wheelbarrows or push carts (dollys) and just filled them with
Spray Foam (such as "Great Stuff" brand).
It would seem to me, that you could just remove the valve stem core,
insert the nozzle from the spray can into the valve stem, and fill the
tire. I guess the only concern would be to make sure the whole tire was
filled, and not leaving parts of it empty. The foam would expand and
make a solid tire.
Has anyone ever tried this?
Why does a tire need to flex? On a car, the flexing is desirable to
cushion the ride, which makes the ride more comfortable. But on a
wheelbarrow or push cart it does not matter. I have both a hand cart and
a wheelbarrow which have solid tires, and they work fine. I also have
both of these which have aired tires. All they do is waste space in my
garage or barn, because everytime I want to use them, the damn tires are
flat. There is no excuse for having to screw around with tires everytime
I want to move a load of dirt or move an appliance. I have never noticed
much difference in handling the ones with solid tires or aired tires.
On Thursday, April 28, 2016 at 5:25:26 AM UTC-7, Frank wrote:
Not all tires need to flex. I was having trouble with constant flats from
thorns on the trailer for my garden tractor. Tire shop suggested replacing
them with solid tires. Yep, they ahd them, I got them, they are great. F
or wheelbarrows, carts, and such use there is no need for "flex".
That is true if you are not running your wheelbarrow over uneven or
soft surfaces. I have one each (solid tire and pneumatic tire). If you
load them up and try to go out across the yard, the difference is
Ever try Slime? I've used it in bicycle tires in areas where goathead
thorns are prevalent and it worked well.
Mr. Tuffy lines also help a lot:
They don't have anything specifically for garden tires but I'd think the
fat tire version could be adapted.
I bought some time with slime in a lawn tractor tire but normal
running will not spread it around enough. The second time, I manually
rotated the wheel (dismounted) in all axis, trying to get an even coat
all over. That held for a year or two.
On Saturday, April 30, 2016 at 12:19:46 PM UTC-7, rbowman wrote:
rom thorns on the trailer for my garden tractor. Tire shop suggested repla
cing them with solid tires. Yep, they ahd them, I got them, they are great
. For wheelbarrows, carts, and such use there is no need for "flex".
Yes I have used it. In fact the tire I took in last time had it. That's w
hen the tech suggested the solid tire.
Can lead to interesting discussions. I don't mind. I'm an old retired
fibers and plastics R&D guy and know most of what is being talked about
here was stuff worked on a long time ago. Also as a home owner know
that I would not buy something at twice the cost even if trouble free.
On 4/28/2016 6:38 AM, email@example.com wrote:
I've thought about it, but never tried it. I'd
be tempted to pull the valve core, and then
collapse the tire off the rim. Squirt the
expanding foam in under the edge of the tire.
Put the tire on a horizontal axle. Turn the
tire (by hand?) as the foam cures. Wear gloves,
and treat the wet foam like toxic waste. Takes
a long time to wear off hands, and never really
comes out of clothes.
The foam continues to expand about double size,
after it's dispensed.
I don't think it is physically possible for the foam to exert enough
force to demount the tire.
It'll work for a while. Eventually the foam may break down and turn
into powder, but it will take some time and some load.. It will ooze
out the valve stem long before the tire comes off!!!!
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