Plastic roof cement
An all-purpose black mastic composed of bitumen, fibers, and mineral fillers with a low level of solvent. Used to seal flashings, vents, upstands and other roof components, as well as to repair various joints, holes and cracks. It adheres to most materials without primer. Its formulation offers good resistance to temperature variations and is designed to be applied at low temperatures. Adhesion to dry and humid surfaces.
Sold in tubs and caulking tubes