Rust-Oleum Roofing Neoprene Rubber Flashing Cement seals and repairs all types of flashing and other roofing substrates with a 100% synthetic, asphalt free formula. Premium rubber roof sealant offers superior wet or dry adhesion and resists sagging and cracking for easy application on vertical surfaces. Dries to a paintable, black finish with superior flexibility and long lasting durability. 20 year warranty.
