Doesn't it only ball-up if CO2 is used to inflate the tire? I only use air and I don't experience sealant balls in the tires.
The common thing seems to be that co2 reduces the life of the sealant, but with or without it you'll still get boogers over time as the liquid portion evaporates from external factors. I guess if you ride a lot and have a lot of Stan's in there, it may stay liquid longer?
Here's an article I remember reading a while back when I had a similar question. Also, some people say that when you get Stan's sweating out of the sidewall is also cause by co2. If you're getting the sweats, that's also the liquid portion escaping and leaving behind the latex. I haven't had to use co2 too many times on trail, but when I do, I usually let everything out of the tire as soon as I get home and refill with air. The one Minion that I do remember filling with co2 at some point does have seepage through the sidewall so I don't know if that verifies the theory...
Some quotes from Stan's in the article:
From Stan’s:
“We have not tested the Hutchinson FastAir that contains a liquid sealant. We have used the Propane Big Air and the Big Air works fine with our sealant. CO2 will get you out of the woods, but we found it reduced the life of the sealant.
— Peter Kastner
System Manager
Stan’s NOTUBES”
Also from Stan’s:
“I don’t think the propane will affect the sealant. Either way, he just needs to get home. Once home, he can remove one bead of the tire and inspect his sealant. Tubeless tires are not hard to dismount if you push one bead into the drop channel and remove this bead while leaving the second bead stretched on the tubeless bench. It’s harder to remove the tire once both beads are in the drop channel. But even then, a plastic lever can remove the first bead and the second will push off with your hand.
— Stan Koziatek
Stan’s NOTUBES”
