Gardner 6235-9-34 Black Jack Black Jack Flashing Cement 1 Gallon Black

Designed to repair cracks, seams and holes in roofing materials. Works on new construction and in setting flashings, drip edges and roofing material edges. Seals damaged areas and gives a layer of waterproof protection. Covers approximately 12 sq ft per gallon when applied 1/8 inch thick. 50 to 120-degree f application temperatures. Use in wet or dry conditions. Will not run or sag.