Why would sealant do this?

[Swift01]

I suspect that is Stans. The rubber ball sealant (creates rubber balls after a while). I have been using Joes for a long time and seems to last at least 6 months and has no rubber balls. Tried Sludge until my mates Mavic rim got chewed up round the valve by it, tried Stans and back to Joes again.

 

One thing I do if I have to use a bomb when putting a new tire on is Bomb it and straight away let the air out then pump with a foot pump. Otherwaise go to the garage to pump up the first time if the foot pump does nt work. Seems to be working for me.

[rouxtjie]

Leave it, its normal...just top up. Actually these little balls come in handy when there is a big hole to seal. Replace with new stan's once a year. On the topic of sealants. Watched tyre "dump its sealant" last weekend...Caffe latex or something. Girl removed a devil thorn and it just start losing all its sealant. Stan's wouldn't have had a issue and the hole was so small that we struggled to plug it. Don't think I will be using that

[Pieterg]

Don't bom

[SwissVan]

Concur, that photo looks normal for sealant that has been in the tire for quite a long time. I use Stans and mine goes like that after about 6 weeks without ever using a bomb.

 

Normaly you can hear when the sealant dries up, or rather you can still hear the sealnt swishing around in the tire if you spin it slowly, when you stop hearing it you know its starting to dry up. Also if it solidifies into an astroid you will hear it rolling around inside.

[Li Mu Bai]

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

nonsense. Bombs dont cause this.

Sealent is made up of latex rubber particles in a liquid base. The liquid base makeup varies from manufacturer to manufacture, but the latex is common to most. as you ride this latex coats the inside of your tire and bonds as per the photo. This is primarily why you need to add sealent after a few weeks of riding, as most of the active particles have adhered to the inside of the tire not leaving much to 'seal' a new puncture hole should you get one. People think it dies up or evaporates, but this is not the case. make sure you 'top up' on sealent regularily.

 

When you do get a puncture, stop immediately, get that hole to the bottom of the wheel, and move the weel slightly forward and back so that the sealent can fill and close the puncture hole. DONT ride it in the hope it will seal itself, it might not and it will most likely break the bond of the tire edge bead that the tire has with the rim when the air pressure inside is too little, leaving you with a MUCH bigger problem of now trying to seal a dirty, sticky latex clogged tire bead that has seperated from the rim.

Obviously very large holes need to be plugged, once again be very careful not to disturb the tire bead / rim edge seal.

 

I have used sludge (not good), Stans (much better) and Joes (preferred)

Edited July 31, 2012 by Li Mu Bai

[ChUkKy]

nonsense. Bombs dont cause this.

Sealent is made up of latex rubber particles in a liquid base. The liquid base makeup varies from manufacturer to manufacture, but the latex is common to most. as you ride this latex coats the inside of your tire and bonds as per the photo. This is primarily why you need to add sealent after a few weeks of riding, as most of the active particles have adhered to the inside of the tire not leaving much to 'seal' a new puncture hole should you get one. People think it dies up or evaporates, but this is not the case. make sure you 'top up' on sealent regularily.

 

When you do get a puncture, stop immediately, get that hole to the bottom of the wheel, and move the weel slightly forward and back so that the sealent can fill and close the puncture hole. DONT ride it in the hope it will seal itself, it might not and it will most likely break the bond of the tire edge bead that the tire has with the rim when the air pressure inside is too little, leaving you with a MUCH bigger problem of now trying to seal a dirty, sticky latex clogged tire bead that has seperated from the rim.

Obviously very large holes need to be plugged, once again be very careful not to disturb the tire bead / rim edge seal.

 

I have used sludge (not good), Stans (much better) and Joes (preferred)

 

Agreed, I replaced my tyres before J2C... my old conti's had seen better days, they were 7 months old with Stans in them and they looked identical to the OP's picture when I took them off.

Never once did I bomb those tyres, so its not only caused by bombs.

Seems as if it just dried a bit inside the tyres from age and a fresh pomp now and then

[Redlight]

Non ust tire

[ChUkKy]

Non ust tire

Rubbish