Black Jack Wet/Dry Surface Roof Cement is an asphalt-based plastic roof cement supplied in a cartridge for gun application. It is the patching compound reached for when a roof leak has to be closed on a surface that is damp, wet or still draining, rather than one that has been given time to dry out.

Plastic roof cement of this type is a heavy-bodied asphalt mastic carrying mineral fillers and fibre. It is gunned into the defect and tooled with a putty knife, where it bonds to asphalt shingles, roll roofing, built-up membrane, metal flashing and masonry and remains pliable instead of curing hard, so seasonal movement in the deck and flashing does not crack the repair. The black colour blends with asphalt shingle and modified bitumen work.

The cartridge size suits point repairs and detail work \u2014 resealing a lifted shingle tab, running a bead at a counterflashing lap, closing a pinhole at a vent boot \u2014 where opening a pail of trowel-grade cement is more material than the job needs.

Key Features

• Formulated to be applied to damp or wet surfaces as well as dry ones, so leaks can be closed without waiting for the roof to dry
• Asphalt-based plastic roof cement that stays pliable rather than curing rigid, allowing the repair to move with the substrate
• Heavy-bodied, non-sag consistency that stays where it is tooled on slopes and vertical flashing faces
• Bonds to asphalt shingles, roll roofing, built-up and modified bitumen membrane, metal flashing and masonry
• Black finish that blends with asphalt shingle, cap sheet and bituminous roofing
• Cartridge format for a standard caulking gun, giving controlled placement in seams, laps and cracks
• Manufactured by Gardner-Gibson under the Black Jack brand, catalogue number 2172

Applications

• Emergency leak repairs on wet or damp roof surfaces
• Resealing lifted or wind-damaged asphalt shingle tabs
• Sealing flashing laps and counterflashing at chimneys, walls and parapets
• Closing splits and pinholes in built-up, roll and modified bitumen roofing
• Bedding and sealing around vent pipes, boots and roof penetrations
• Sealing gutter seams, end caps and downspout joints
• Sealing metal building panel seams and fastener heads
• Detail patching at roof seams, gable joints and firewall junctions

Product Details

• Brand: Black Jack
• Manufacturer: Gardner-Gibson
• Product Line: Wet/Dry Surface Roof Cement
• Type: Asphalt-based plastic roof cement / sealant
• Substrate Condition: Wet or dry surfaces
• Color: Black
• Container: 10 oz. cartridge
• Application Method: Caulking gun, tooled with a putty knife

Specifications

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