Features 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 Apply with trowel Covers 12 sq. Ft. Per gallon, 1/8 in. Thick. Size – 1 gal. Color – Black
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