Ensure a watertight seal for your roofing and gutter projects with the Bond It Roof-Mate Sealant in black. This 310ml tube of sealant provides strong adhesion and weather resistance for durable protection. Keep the leaks at bay with Bond It Roof-Mate, the ultimate roof and gutter sealant! This high-performance formula is specially designed to tackle a variety of roofing and guttering applications, providing a watertight seal that lasts. A polymerically reinforced lap jointing sealant and the adhesive used to prevent leaks in gutters and downpipes. Forms a flexible seal.