Stan's 16oz Tire Sealant
Award winning tire sealant from the folks that invented tubeless conversion and redefined puncture protection. Unlike other tire sealants, Stan's Tire Sealant is a very thin, low viscosity liquid that coats the inside of the tire and carries with it specially formulated sealing crystals.
Easy to fill tires, especially with the Stan's syringe. Never had a flat so I have to assume it's doing it's job and I ride in the Virginia mountains with rocks, roots, and everything else that could give your tires problems.