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The first name in tubeless! Often imitated but never duplicated.
The Product that Started a Tubeless Revolution. Today's tubeless systems rely on the lighter, more reliable, self-sealing performance of Stan's Tire Sealant. Read more..
Just two ounces of Stan's in a converted standard tire or tubeless tire can repair punctures up to 1/4" almost instantly to keep you rolling. Longer-lasting Stan's Tire Sealant is formulated to stay liquid in tires with even thin casings for up to seven months. Arid conditions require more frequent monitoring of sealant levels, but anti-freezing agents in our special formula allow Stan's Tire Sealant to be used in temperatures as cold as -20° F.
For a XC 29er tire (2.0-2.2”) we recommend 3-4 ounces (89-118ml) of sealant as a starting point. The amount of sealant can be adjusted based on the volume of the tire. More sealant can also be added if a tire is particularly porous and difficult to seal. For road and cyclocross tires (28-45mm), we recommend 2 ounces (60ml).