Everbuild Black Jack 904 is the ultimate solution for securing your roof felt. This high-strength, bitumen-based adhesive boasts incredible instant grab, bonding felt to metal, concrete, wood, and more. Its superior flexibility adapts to temperature changes without cracking, while excellent water and chemical resistance ensure long-lasting durability. Seal felt laps, bond chippings, and even use it for cold gritting – Black Jack 904 is your roofing adhesive powerhouse.