Do they ever stop sweating sealant? Using Stans on a set that have been on the bike for some months now and they’d lost some pressure/sidewalls were wet yesterday when I got the bike out.

Mine are getting worse as they get older (2 Butcher Controls) so I’d guess they’ll stop when they run out of sealant

I’m just about to take a couple of 18month old 2bliss control cased tyres off. They are sweating a lot and have actual mini puddles forming. But these are old tyres with threads showing on the sidewalls now. I don’t think they did this when new.

Fwiw – the geax/vittoria saguaros that had been on for the same time/mileage are still fine with no sweating at all. Must be less durable sidewalls on the spesh tyres.

I’ve got a Purgatory on the rear wheel of my Big Top and it doesn’t leak much. Doesn’t stay up like a proper UST tyre though. Bring back UST!

I read on mtbr that specialized were offering warranty replacements on tyres that were leaking sealant from the sidewalls. The discussion was about plus size Purgs and GCs though, but you would think it would apply to all their tyres.

i find teh controls weep all teh time. not as bad as a single ply maxxis but not great.

The grid versions appear fine at present.

Do they ever stop sweating sealant?

Mine do after a couple of rides.

Had it with some swurks tyres but never with the controls tbh. If in doubt, add some cheap glitter- it can seal tyres up better and it makes you sparkly.

I also find Stans to be pants relative to caffe latex. Never has any seeping with the latter, be it grid or control casing.

Yesterday I got my 6fattie out and the back tyre was flat, 4 month old and had sweated 100ml of stans out. Purgatory on the front nowhere near as bad but does sweat a bit.

I’ve got two sets of 2Bliss Ground Controls, one 26″, on 27.5″, one with Stans and one with Slime. Both are fine, although the Slime lasts a lot longer than the Stans.

Butcher cOntrol is bad, Slaughter is awful. Ride well though

My butcher and purgatory are more than 2 years old. The sidewalls are worn with visible thread and they sweat sealant from the sidewalls but they lose little air.

Muggomagic, got a link to the MTBR article re warranty on specialized tyres? Thanks

Northwind – Member
Had it with some swurks tyres but never with the controls tbh. If in doubt, add some cheap glitter- it can seal tyres up better and it makes you sparkly.

Is there a specific measurement of glitter to use, or just whatever’s left over from the weekend? 😉

sweaty 2bliss here too. save the glitter for special occasions.

Is this the same glitter you roll turds in?

It wasn’t an article it was a forum thread where people were commenting that they were having this problem and Specialized were replacing the tyres under warranty as they seemed to be aware of an issue with a batch/batches of tyres.

mtbr link. There are 59 pages on this thread though so hope you have plenty of spare time.

thanks, I read the fuse thread, time to work my way through the stumpie one.

My 2 or 3 year old ones have done no sweating at all. So maybe it’s more recent batches.

Still, I like the sound of glitter. Although it seems a waste to put it on the inside. Was it left over from decorating your handlebar tassels?

I had 2 storm control replaced by lbs as although brand new the sealant was almost pouring out the sides. The new ones are still poor in the staying up stakes… maxiss and schwalbe are far better it seems.

Strange the purgatory and butcher I have on my bronson don’t weep and actually they barely lose any pressure at all either, compared to the set of storms I have on hardtail which seem to drop pressure over a day or so

Still, I like the sound of glitter.

makes sense. Any recommendations on a source? 100g packs on eBay seem to be about £2.50 – is there anything better?

My two Purgatory’s weep but not too much and they don’t lose much air. I will probably try a different brand when it’s time to change but I’m in no rush.

Try painting latex solution on the inside of the tyres?

This worked for me way back in the days of tubeless conversion kits and XC tyres with pinholes galore in the sidewalls. Well, when I say worked, it worked so far as leaky sidewalls were concerned, I wouldnt say it ever worked as an overall solution so I went back to tubes until things got better with UST and tubeless ready stuff.

luket – Member

Still, I like the sound of glitter.

Glitter doesn’t make a sound. Dur.

I use tesco stuff, because it’s convenient, it was a quid for 4 vials/tubes and I put about a quarter in any hard-to-seal tyre so it goes a long long way. Remember to put the caps back on or you will regret it, don’t arsk me how I knows, I just knows.

I think this sympton seems to be worse in warm weather.

It must be a more recent batch, I bought some purgs a few years ago and they never sweated. The sidewall deformed before it had the opportunity to tear, which was nice…

Having never noticed or paid attention, i looked on my Purgs last night and they had sweat marks all over the side walls. Coming up to two years old so may be an age thing but it was very warm also.

Not noticed any drop in pressure, only pump them up every two months or so.

2 bliss are supposed to have an extra layer of butyl to hold air and sealant. They’re specifically design to be run with sealant, so if they’re crying sealant through the sidewalls, I’d be taking them back for replacements.

Mostly my tubeless only cry more as they get older as the carcass gets more battered.

I run hans dampf with no issues at all!! 🙂

Got Purgatorys on mine and for the first few rides they sweated quite a bit (using OKO magic milk), since then have been fine until its dried up abit then started loosing air again , chucked some of Decathlons finest sealant in(not recommended for tubeless ready but thought i would experiment)and it works perfectly.

ocrider – Member
It must be a more recent batch, I bought some purgs a few years ago and they never sweated. The sidewall deformed before it had the opportunity to tear, which was nice…
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Been running Purgatorys and Butchers for 2 or 3 years now. The Purgatorys did it straight away, Butchers take some use before it starts. Always been there for me though

2 bliss are supposed to have an extra layer of butyl to hold air and sealant. They’re specifically design to be run with sealant, so if they’re crying sealant through the sidewalls, I’d be taking them back for replacements.

The extra layer of butyl is over the tyre bead, not the carcass. The carcass relies on the sealant to seal the microscopic holes in it hence you get some weeping of sealant while this process happens.