Airlock 181 Duct Sealant Gallon

| Water-based, designed for use in low to high pressure systems up to 25" W.G. | Non-toxic, flexible and non-staining | Produces a strong, permanent bond on fiberglass ductboard, flex-duct and galvanized steel sheet metal | Seals out moisture, air and dust | Meets UL-181 standards | White | Cleans with soap and water while wet