a base oil, and a thickener. With its composition, it has exceptional surface adhesion, which also prevents water washout. Even in extreme conditions, the grease remains on the surface for optimal protection and effectiveness.
If you've got a small leak the bright colour is easy to spot against a tyre. Bontrager TLR is a very thin carrier fluid, even thinner than Orange Seal, with a good amount of solids in it. When we've had a flat, it's not been thick enough to chunk up and plug large holes but...