Hardcast 304156, Duct-Seal 321 Water Based Duct Sealant, Gray, 1 Gallon Pail
Cat # : X1853
Model/Part # : 304156
Product Overview
Duct-Seal 321 Duct Sealant
Duct-Seal 321 is a GREENGUARD Gold Certified all-purpose industrial-grade duct sealant for all types of metal duct, fiberglass duct board, duct fabric and flex duct. It includes UV inhibitors for extended outdoor exposure and built-in fiber reinforcement for added strength. This non-toxic water-based product is solvent free and is suitable for residential use.