Products / GacoFlex H.E.R. Flashing Grade Polyurethane Sealant

GacoFlex H.E.R. is a flashing-grade, single-component, moisture-cure polyurethane roof sealant. It is used to waterproof metal roof seams and fasteners, flash roof penetrations, and seal metal gutters, and also seals polyurethane foam, wood, and concrete. It is aluminum gray.