• Black Jack Waterproofer
• Blackjack Rubber Coat 57 Reviews
• Black Jack Rubberized Foundation Sealer
• Black Jack Sealant

Black Jack Rubr-Seal Rubberized Roof & Flashing Cement is our best quality roof cement. This highly flexible product can be used year round in any weather condition to stop and seal leaks. This high performance product provides an exceptionally long lasting seal, formulated to repair cracks, seams and holes in roofing materials. Black Jack Rubr-Seal,10.1 OZ, Rubberized Roof & Flashing Cement, Stops Leaks Fast, Best For Extreme Weather Conditions, Longest Lasting Rubberized Seal, Ideal On Flat Or Vertical Surfaces, Best Stick In Wet Or Dry Conditions, Highly Flexible Product Can Be Used Year Round In Any Weather Condition To Stop & Seal Leaks, Formulated To Repair Cracks, Seams, & Holes In Roofing Materials, Designed. Black Jack Rubr-Coat 57 is specially designed for waterproofing roofs and foundations. It can be used on masonry, wood, foam board insulation and metal surfaces. This rubber roof coating reinforces to provide a strong, flexible and crack-resistant seal.

Black Jack Waterproofer

How Much Should I Buy?

Coverage is provided as a range to accommodate variations in surface porosity. On the roof, smoother surfaces like metal will achieve better coverage rates and require less product. The same applies on the ground. Driveways that are in better condition will absorb less.

Blackjack Rubber Coat 57 Reviews

Select a Product

How do I calculate square footage?
Square footage is based on multiplying the length of an area x width of that area.
What about non-rectangular areas?
In those instances, you need to break the area down into smaller rectangles. For instance, an L-shaped surface can be broken into 2 smaller rectangles (see illustration below). Add the 2 areas (100 + 200 = 300 sq ft) to get a total.

Black Jack Rubberized Foundation Sealer

Black Jack Sealant

For areas where you will not apply product, subtract that area from the total.