I’m still using TruckerCo.
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Just get orange seal, it works. No reason to overthink this one.
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I tried Silca but didn’t like it. I was impressed by the videos of tires getting punctured by screwdrivers and sealing but, I don’t really need that level of sealing where I ride … The fibers in it mean you can not inject it into the valve stem which makes set up more of a pain and it dries out super quick and if you don’t keep up with the refills its worthless. If you’re getting unsealable flats once a month Silca might be worth the hassle but otherwise, an easier to work with sealant is better.
I went back to Stan’s and am happy.
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I’ve used Stan’s normal for years in MTB tires, and am currently using Stan’s Race in gravel and road. Both have worked great. Race has a lot more particulates and can’t be added via a valve stem to top up if that matters to you, but also seems to plug holes better (for the same reason).
I’ve had multiple punctures on the road that have caused some sealant to spray; in most cases you can just keep rolling and it’ll seal right up. In rare cases I’ve found the need to stop and position the puncture at the ground so a pool of sealant covers it. In one case I actually added some more air with a CO2 cartridge to get a good seal; sealant needs a minimum pressure to do its job, so slow leaks are your enemy.
You 100% need to change your sealant, I’d suggest every 6 months at least, more often if you’re in a very hot climate. You’ll find that after 6 months the volume of sealant is much reduced, color of the sealant has changed, in some cases it’s much less viscous and particles have disappeared; it’s terrible at sealing in this state. If you leave it long enough you get some interesting little coral-looking latex tumbleweeds that form in the tire.
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The original or endurance? 
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Endurance for normal day-to-day (non-critical) use, fresh “normal” for races for greater sealing ability but needs more refreshing.
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Well, already enough asterisks for me. Orange Seal has worked fine for me, so I’ll stick there. Have 4 tires downstairs and 4 inserts I need to pull all the dried Orange Seal off of in fact…
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I’ve only used muc off sealant for 1 year on mtb. No other tubeless experience.
Does anyone else rate this or do I need to change?
I use Stan’s. It’s relatively cheap, works well, and can be purchased anywhere. I check the sealant amount every 3 months with a zip tie as a dipstick. Before I did this, I ended up with maybe 10 ounces of sealant per tire because I refilled every 3 months.
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Race version.
I have 28c Gp5000. I honestly don’t remember how much I added. Maybe 2oz to each?
Can only comment on MTB, been using Stans for about 8 years and havent had a single puncture I’ve known about since.
I use a cocktail of Muc Off and Stans sealant (it looks like alien-vomit when mixed)
The Muc Off is very gloopy/viscous but seals very well.
Stans is quite ‘milky’ in comparison but doesn’t seal as well, thus a combo of both gives a better solution for me.
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I use Caffelatex by Effeto Mariposa, less than half the price of Stan’s and seals much better than Stan’s
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Just had a read on the info… seems very promising as they claim:
“For tubeless-ready tyres the sealant lasts 4-6 months, so you can go a long time between fill ups and enjoy puncture-free riding for months on end before you need to check if the sealant has dried out”
Can this sealant be injected through the valve with core removed?
Nothing is foolproof - but my experience matches what I hear every time I read any of these threads over the years. Stans and Orange Seal always come to the top of the heap. Seems everyone else tries some gimmick that bites in the backside.
That said, I have very reliably been using Truckerco for several years now. As good as the 2 mentioned above.
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Wow, as much as everyone takes dylans word as gospel, its good to hear people believe reality and not recommend silca sealant. Yay
Yes…but
…this is rather optimistic. I’ve set up multiple sets of tyres recently, most had nothing at all left at three months when I checked. There’s a bit of the ‘initial installation always uses more than subsequent topups’ issue, but when you combine that with a few small holes that didn’t seal I swapped back to my previous sealant (Magic Milk Hi Fibre)
No punctures to speak of thank goodness. I have Schwalbe Pro One tires and they suggested Doc’s Blue which is just relabeled Stan’s so that’s how I found it. No other experiences with tubeless before.
I started with 60ml per tire and needed to refill about half that after a few months. Pressure would drop from 73psi to about 30 after sitting but usually no lower.
Stan’s got very dirty/milky looking but no latex “boogers” when I took the tires off at the end of the season, stayed liquid and cleaned up easily, almost like it didn’t do anything at all inside the tire; I only rode about a hundred miles or so honestly. The valve did plug up but I believe all sealant does that.
I’m just going to try something different this year. Correct or not I did read higher pressures can be less effective with certain brands, so road vs MTB vs XC whatever I guess is the better question.
I use it on the road. Giant hookless wheels and GP5K, It’s been working perfectly. Had a couple of punctures, including one considerably large ~0.3cm and it sealed ok.
It’s also easy to fill and cheap.
The issue, for me at least, with Stan, is that it has ammonia. I’m not an engineer but I’ve heard that is not an ideal combination with carbon fibre, tires.
Stan’s website says that:
That’s why my choice for Muc off as it is ammonia free.
I have regular Orange Seal in my winter/gravel bike. How effective is it in freezing conditions, like the 20s F or -5 C? My winter endurance rides take me pretty far out on a rails-to-trails.