Gardner LEAK STOPPER Series 0311-GA Roof Patch, Black, Liquid, 1 gal (Pack of 4)

A revolutionary advancement in roof patching and repair. This long-lasting rubberized repair is specially formulated to penetrate deep into damaged areas and stop roof leaks instantly. The secret is Penetrex™, a unique penetrating oil that reaches deep into the crack and forms a complete seal. With the addition of liquid rubber, this flexible, high performance plastic cement provides a superior watertight bond that will stop problem leaks for good. Product formulated to be used year round. LEAK STOPPER is ideal for a variety of roof surfaces including shingles, built-up roofs, SBS modified roofs, metal roofs and many other surfaces.