Why would sealant do this?

[davidlangebaan]

So I did the Burger yesterday and got a few punctures in the back wheel.

 

First one sealed itself.

Second one (i think it was the first one reopening) wouldn't seal. Bombed it, spun the wheel, no joy.

So I put in a plug, bombed it and it still wouldn't seal.

Put in a tube and noticed when I did so that the sealant had turned to chewing gum which was now lining the inside of the tire. and there was some (very little) very watery looking sealant in the tire.

 

The pic shows what it looked like when I got home.

The sealant has only been in the tire for 5 weeks so its not old.

Is this caused by the bomb? And if so what is the solution and are there CO2 bomb-compatible sealants?

[madvics]

It's definitely from the bombs, quick question when you pump your tyres before you ride do you use bombs or a pump.

[Guest ctMTBer]

Don't spin the wheel to seal it. Turn it so the hole is at the bottom and the sealant can run down and seal. Spinning the wheel does not help.

 

Bombing it causes this.

[brad890]

It can happen gradually over time If you've had the sealant in there for a long time and havent topped it up,

 

otherwise as stated above CO2 bombs dont help the situation, they make the sealant more acid and cause the latex to precipitate leading to either that or boogers.

[davidlangebaan]

It's definitely from the bombs, quick question when you pump your tyres before you ride do you use bombs or a pump.

 

I use a pump. This is the first time I've used bombs on this tyre.

[davidlangebaan]

Don't spin the wheel to seal it. Turn it so the hole is at the bottom and the sealant can run down and seal. Spinning the wheel does not help.

 

Bombing it causes this.

 

Yeah wasn't sure but eventually tried that, but I think the sealant was poked by then. Will do that first next time, thanks.

[mikkelz]

The inside of my Specialized The Captain Control (front) and Fast Trak LK (rear) also look like that - I clean them out and completely replace the Stan's once a year. My bike came with the S-Works version of those tyres and touch wood, I still haven't had a puncture to date (over 4,100km's on my bike split over two sets of tyres).

 

Yesterday I pulled out a few huge thorns when I was cleaning my bike - they'd pierced right through the tyre and you could hear the air escaping after I pulled them out. But I turned my wheel upside down, as mentioned by ctMTBer, so that the sealant filled up the whole and this morning my tyres are still well inflated ~20psi. I usually pump them up to 22psi before I ride.

 

On the Stan's bottle, it says the sealant should last between 2 to 7 months, but that you may need to replace it sooner in a hot climate.

Edited July 29, 2012 by mikkelz

[koukie]

I'm using slime pro now, some would say it does not work as well as stans, but till now I cant see a difference, for me it work just as well or even better because it never makes a snot ball in your tyre. And the best is its smells like coconut!

[Dicky DQ]

That is normal no matter what sealant you are using. the reason it would not seal on you is most of the juice was already gone. some of the other k@k like bat seal does not even last a few weeks and makes golf ball size balls of latex in the tyre.

[davidlangebaan]

That is normal no matter what sealant you are using. the reason it would not seal on you is most of the juice was already gone. some of the other k@k like bat seal does not even last a few weeks and makes golf ball size balls of latex in the tyre.

 

This was some of the other k@k. Came with the conversion kit. Going back to Stan's.

[RooiWillie]

I have had Stan's in my GT's rear wheel (tube) for more than a year and a half... No issues! I should actually open it and see if there is anything still left.

[Rydogg]

Dont leave your tyres in the sun!

[Jakkals.]

how is the conti slime we get when we buy their wheels? im doing the baviaans and scared that it may not last because it was watery compared to the stans ive got in my front wheel.

[Iron]

This is normal , dont stress !

 

bomb or no bomb you will get this . just fill it up and refit it . NOTE ! check your sealant often !

[Bike Mob]

agree, normal dried out latex sealant...just top up.

 

You can wipe it off if you have nothing better to do...and /or are a weight weenie.

Edited July 31, 2012 by Zilla

[Super_mil]

A lot of sealants are ammonia based to keep all the constituents in solution. Over time the ammonia diffuses through the tyre and the sealant drys up.