Why is my sealant clogging my valve stem?Updated 22 days ago

Preventing a Clogged Valve Stem when using Sealant 

The best way to prevent this from happening is to store your wheels so that the valve stem is at the 6 o'clock position. This will allow any sealant to drain out of the valve stem. Then, when it's time to pump up your tire, turn the valve so that it's at the 12 o'clock position. This will allow any sealant that's pooled underneath the valve to drain away from the area so that it doesn't blow back up into the valve when you're pumping air into the tire. It is always a good idea to have some spare valve cores around when you're using sealant, though, as, unfortunately, clogging can happen. When installing a new valve core, it can also be helpful to add a lubricant, like our Synergetic, in and around it to help prevent any sealtant from settling in the stem.