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Which do you prefer?

Neither.
Both are the same formula just with different coloured dyes.
Both will not work for very long because both are water soluible
both will accelerate the rusting of the rims
So both should be avoided,

I totally agree with Bert, plus your dealer or tire shop will charge you extra if they ever have to replace your tire with that stuff in it.

I was told that the Briggs sealant would not rust steel rims. That they put stuff in them to prevent that. And looking at this website, it says Slime is doing the same thing.

I've used both. But only on customers tires. I can't remember one ever coming back.

Looking on Amazon, I found this stuff.
Phantom Farm Ballast and Tire Sealant. The reviews say it's extreme good stuff. But hard to put in a valve stem because it's sooo thick. I asked how much would it take to fix dry rot cracks on a riding mower, this morning. But haven't gotten a reply yet.

I haven't used much slime but have used the Briggs version and seems to work OK, but doesn't seem to work as fast as some of the other others I have used. Just seems like the Briggs brand takes awhile for it to work into the holes and then actually seal them. I have used the Oregon brand in the past and seemed to work better. I have torn apart tires with Slime, Briggs and a couple of other brands and have never found them to cause the rims to rust. I think people are having a holdover feeling from the fix-a-flat days where that stuff was like CaCl to the rims.

Much like fuel going bad, I would guess that the use & enviroment has a lot to do with weather the rims rust or not.
Down here I am yet to pull a tyre full of any tyre sealant and find the rim clean and rust free enough to replace the tyre without first cleaning and repainting the rim.
Regularly the rust around the valve hole is so bad I either drill a new one & plug the old or replace the rim.

I feel sure it is the tyre goo because when I get a mower in for new tyres , if one has goo in it and the other has no goo, the no goo rim is always sound and the goo rim is always rusty.
By the time a tyre is suffering from dry rot it's structural integrity is compromised as the plasticizers in the rubber have been oxadized or broken down by UV rays.
So it is time to replace them.
Or in the case of real tractor tyres, fit a tube.

You prevent dry rot by using tyre dressing from the time that the tyre is nice, new & soft.

I do have a 5 gal pail of Stens tyre seal and I do use it when requested to by the customer.
Like a lot of things, I warm them once that it can rust the rimes and means that the tyre can never be plugged if the get a big hole in it.
If they still want it in the then it is $ 20 / wheel thank you.
More than once I have needed to replace the entire tyre because the owner got a big thorn hole in it and with the goo inside, I can not plug it.
They take the wheel to an "unbiased tyre shop" pay $ 20 each for several plugs then go to my competitior for a new tyre cause they are too embarassed to get one from me.

Perhaps the lattest goo is better than what I have been using but the green ( slime ) purple, Blue ( Stens ) Pink & yellow stuff I find in tyres is always associated with badly rusted rims.
The fact that the labels make the effort to state it will not rust the rim or helps to prevent rim rust or whatever tends to support that rim rusting was a problem in the past at least
The closed cell foams like fix-a-flat do not rust rims in themselves but on spoked rims they hold water that wicks up through the nipple hole.
AFAIC if those rims rust out it is the owners fault cause the stuff is only supposed to be used top get you out of trouble and not a final repair.

My fix for a leaking tubeless mower tire is an inner tube.

I've never used it in anything but did find it in a motorcycle tire once. It took HOURS to clean up that mess so the wheel could be used again.

cpurvis said:

My fix for a leaking tubeless mower tire is an inner tube.

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No thanks.

To each his own, but I want no part of inner tube on anything I own, much less a mower. :laughing:

The-Dude said:

No thanks.

To each his own, but I want no part of inner tube on anything I own, much less a mower. :laughing:

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What sort of problems have you had by putting a tube in a tubeless mower tire? I haven't had any.

cpurvis said:

My fix for a leaking tubeless mower tire is an inner tube.

I've never used it in anything but did find it in a motorcycle tire once. It took HOURS to clean up that mess so the wheel could be used again.

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I've used a many of them. I've messed them up trying to put them in. It's a real pain in the rump to cut one while you're installing it. Only to find out afterwards.

But, I haven't made that mistake in a long time.

Plus with an inner tube, if you get a small hole in it. Slime (or the Briggs brand) works pretty good. Especially since the outside of the tube fits snug against the inside of the tire after you air it up.
Trick is to get the nail or thorn out of the tire first.

But usually 99% of my tubes go into tires that are dry rotted and cracking on the side wall.

I've used slime, and my dad has used slime for years, mostly on lawnmower tires and 4 wheelers. Matter of fact I have slime in a tire on the Mule right now , been working for 3+ years, almost daily driving
Never heard of using laundry starch, interesting.

ILENGINE said:

I haven't used much slime but have used the Briggs version and seems to work OK, but doesn't seem to work as fast as some of the other others I have used. Just seems like the Briggs brand takes awhile for it to work into the holes and then actually seal them. I have used the Oregon brand in the past and seemed to work better. I have torn apart tires with Slime, Briggs and a couple of other brands and have never found them to cause the rims to rust. I think people are having a holdover feeling from the fix-a-flat days where that stuff was like CaCl to the rims.

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Update threw away about half a 5 gallon bucket of the briggs brands sealant and have went back to installing tubes.

I hate the stuff myself. I seen too times people use it and then want me to install tubes. Most times the rims are rusted and the tires are ruined from the slime junk. I will clean and paint the rims but it is a new tire that goes afterwards. It is sad that something that suppose to work will not after the tires sits for several week just to have a puddle of slime under them and the tire are flat.

I tell upfront that if they have use the slime that most likely they will need a new tire. They can continue putting the junk in but don't expect me to clean up afterwards. They can do it themselves. I did show a couple customer how the slime ate away thier inner liner and how it melted those cheap Chinese tubes.

As Star has mentioned, slime will destroy the rim if there was any imperfections in the paint as it then lifts the paint & accelerates the rusting process.
The first tiem you notice it is when the rust gets under the edge of the tyre & it starts leaking.
All of these products are basically the same and all are water soluable so can only be considered a temporary fix at best.
I do not and will not add it to any tube or tyre and if I find it in a tyre that comes in for repair I put the timer on and charge actual hours .

We use tire go by royal oil good stuff. https://www.royaloilus.com/products/coatings/specialty-products/tirego/

No Tire sealer is a 100% fix you should still check the tire occasionally. I use to work in the auto tire industry and the tire manufactures would tell you that a good tire can loose 2 lbs. of pressure a month and lawn mower tires are even worse.

ILENGINE said:

Update threw away about half a 5 gallon bucket of the briggs brands sealant and have went back to installing tubes.

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You should've saved the sealant to put in the tubes. It works better in tubes than tires. Depending on the size of the hole, of course.

PTmowerMech said:

You should've saved the sealant to put in the tubes. It works better in tubes than tires. Depending on the size of the hole, of course.

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Technically still have it sitting in the bucket in the corner. And had to deal with a mess after somebody put slime in the tube on a rider and then it leaked out of the tube into the tire, squirted out of the valve stem hole into my face when I tried to air up the low tire.

PTmowerMech said:

You should've saved the sealant to put in the tubes. It works better in tubes than tires. Depending on the size of the hole, of course.

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Will it really work in tube type tires never tried it was told it would not work.

hlw49 said:

Will it really work in tube type tires never tried it was told it would not work.

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I don't know the difference, but apparently "Slime" has two types. One for tubes and one for just tires.

Don't like the green slime it just balls up in what looks like cotton ball, have seen them almost as big as a marble.

The-Dude said:

No thanks.

To each his own, but I want no part of inner tube on anything I own, much less a mower. ?

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My problem are thorns. Tubes, are a NO NO. Just saying 80% of the time you will not find the thorn upon inspection. YUP, there goes another tube.

I have always been against using Slime and similar products for all of the reasons people has well stated here. However I may be interested to use this product after seeing a test performed by Project Farm(he does not take money from companies selling what he tests) on tire sealers. A product made by multi seal called Flat out. it claims to last upto 10 years. Slime I believe is 2. It will also plug upto a 1/2 inch hole. It is water soluable for easy clean up and freeze resistant. It is used by the construciton industry in equipment. He found that none of those tested cause rust. Including slime. I have removed tires before and found water in there. Water causes rust. So my guess is that there was some water in there with the Slime or other product when rust was found. For something like an off road implement, i.e. lawn tractor, snow blower, etc. it is low risk to try it out. If it works for 5 years as stated I would be happy.

Double Leg1 said:

My problem are thorns. Tubes, are a NO NO. Just saying 80% of the time you will not find the thorn upon inspection. YUP, there goes another tube.

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That what the back of your hand is for. I find a lot of the small thorns that way.

StarTech said:

That what the back of your hand is for. I find a lot of the small thorns that way.

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Stockings are the perfect thing for finding a thorn inside a tyre

PTmowerMech said:

I was told that the Briggs sealant would not rust steel rims. That they put stuff in them to prevent that. And looking at this website, it says Slime is doing the same thing.

I've used both. But only on customers tires. I can't remember one ever coming back.

Looking on Amazon, I found this stuff.
Phantom Farm Ballast and Tire Sealant. The reviews say it's extreme good stuff. But hard to put in a valve stem because it's sooo thick. I asked how much would it take to fix dry rot cracks on a riding mower, this morning. But haven't gotten a reply yet.
View attachment 45657

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Fix dry rot tires? By the time you waste buying tire jizzo and your labor, new tires can be had. Plus like mentioned getting it into the tire, well all the pitfalls......

slomo said:

Fix dry rot tires? By the time you waste buying tire jizzo and your labor, new tires can be had. Plus like mentioned getting it into the tire, well all the pitfalls......

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Yes, replace tires with dry rot. However they are a lot of other causes for flat tires that "tire jizzo" may make a lot of sense. Have you seen the cost of new tires lately?

print("Hello, world!")

bertsmobile1 said:

Stockings are the perfect thing for finding a thorn inside a tyre

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I find leaks with soapy water and 30psi of air. Then i circle the spot with a tire crayon.

Anybody who runs a shop and has had to remove and clean all the "jizz" out and the stuff has been in there for years and the rim is a ball of rust will tell you it isn't any fun. When i have to deal with one of those turds where i have to clean, sand and paint the rim i charge an extra $25 per tire. I have gallon jugs of 2 different sealants but i haven't used them in a few years. Not worth the headache. I am even at the point i don't like fitting tubes to extend the life of a rotten tire.