Finish Line Multi Seal Tubeless Tyre Sealant is naturally non-toxic, hypoallergenic & safe for carbon fibre rims. Fiber Link technology makes this possible. Utilizing Du Pont Kevlar fibres, Fiber Link seals are extremely robust once they plug a hole. When a puncture happens, fibres rush into the wound & quickly stop air loss. As the tyre flexes while it is ridden, the Fiber Link mesh tightens & reinforces itself, creating a confidence-inspiring seal that will last ride-after-ride. Features Creates a kevlar reinforced fibrelink seal when a puncture happens, fibers rush into the wound & instantly stop air loss as the tire flexes while it is ridden, the fiberlink mesh tightens & reinforces itself, creating a confidence-inspiring seal that will last ride after ride utilizing dupont kevlar fibers, fiberlink seals are extremely robust once they plug a hole latex free, will not dry out inside the tire once installed will last the entire usable life of the tire no refreshing required; no gradual weight gain co 2 compatible & unaffected by cold temperatures naturally non-toxic & hypoallergenic water soluble & cleans up easily with a wet rag