Products / Black Jack All-Weather Roof Cement

Black Jack All-Weather Roof Cement (product 6230) is an asphalt-based roof cement for repairing cracks, seams and holes and sealing around skylights, vents, pipes, chimneys and valleys, applied to wet or dry surfaces. Its technical data sheet gives a coverage of approximately 12 square feet per gallon at 1/8 inch, recommends reinforcing repairs with patching fabric, and states it is not for EPDM, TPO, PVC or other rubber or synthetic surfaces. It is sold in quart, 1-gallon and 5-gallon sizes, and the data sheet carries a three-year limited warranty against material defects.