Products / RepairBoss All Roof Mastic

RepairBoss All Roof Mastic is a single-component rubber-compound mastic for sealing fasteners, laps, penetrations, pipe boots, seams, flashings and curbs on roof surfaces. The data sheet lists compatibility with metal, concrete, aged TPO and PVC single-ply membranes, granule- or smooth-surfaced modified bitumen and asphalt built-up roofs. It is supplied in white and gray in 2-gallon pails.