A combination of a high sorptive polymer in a bentonite base. The polymer produces a protective seal against penetration of fuels, chemicals and other fluids. Scoop out and apply to instantly stop leaks. Be sure to secure lid tightly so unused portions are not exposed to air which will dry the putty out. In cases such as tank punctures, wooden plugs can be jammed into the hole to minimize fluid release. A “born on date” stamped on label, good for 2 years after date.Nontoxic and pre-mixed — no kneading, no curing, no surface prep requiredQuickly seal and stop accidental leaksCan be used with wood plugs to minimize fluid releaseSticks to greasy, rusty or dirty surfacesNOT intended to be used as a long term solution