Black Jack Leak Stopper 1 Gal. Rubberized Roof Patch Knives Unique snap and stay deadbolt

Unique snap and stay deadbolt design for a hassle-free installation

505% Total 100

Heats 75+ watts per square inch

jp-8 & jet-a fuels

Built-in safety switch to help prevent the water heater from overheating

Black Jack Leak Stopper 1 Gal. Rubberized Roof Patch Knives Unique snap and stay deadboltA 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