Black Jack Leak Stopper 1 Gal. Rubberized Roof Patch Cements To determine the size needed

To determine the size needed

Leak resistant to all paints + stains

Closets & Wherever Mold Takes Hold

A versatile all purpose joint compound providing professional-grade performance

Seals and rustproofs metal surfaces

Black Jack Leak Stopper 1 Gal. Rubberized Roof Patch Cements To determine the size neededA revolutionary advancement in roof patching and repair. This long lasting rubberized repair is specially formulated to penetrate deep into 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