Award winning tyre sealant from the folks that invented tubeless conversion and redefined puncture protection please read the mbuk39s six of the best guide to tyre sealants unlike other tyre sealants stan39s tyre sealant is a very thin low viscosity liquid that coats the inside of the tyre and carries with it specially formulated sealing crystals the low viscous nature allows the sealant to quickly reach the puncture site and the crystals aid in sealing large holes something which t