Foster 40-11 Duct Liner Sealer – Black, 5 Gallon

Foster 40-11 Duct Liner Sealer for Fiberglass Liner and Duct BoardFoster 40-11 is a black, low-odor, quick-setting waterbased surfacing material supplied in a 5 Gallon container. It is made for unfaced fiberglass duct liner and fiberglass duct board insulation. Foster 40-11 Coverage and Use Made for unfaced fiberglass liner and duct board — surfaces the exact insulation types found inside lined HVAC duct Waterbased and low odor — cuts fumes on occupied-building jobs compared with solvent products Quick setting — sets fast so you can move through a duct system without long dwell delays Black finish — blends with the dark interior of lined ductwork for a uniform look Backed by an SDS and product data sheet — coverage rate and application come from the Foster documentation with the product Foster 40-11 Where It's UsedAir-duct cleaning and HVAC service crews apply Foster 40-11 to resurface unfaced fiberglass duct liner and fiberglass duct board after cleaning. It fits homes, offices, and institutional buildings where interior liner has degraded and needs a fresh sealed surface. The low-odor waterbased formula suits work in occupied spaces. Check the product data sheet for coverage rate and recoat guidance before you spray or brush. Documents860750 Product Data Sheet (PDF) 860750 Safety Data Sheet (SDS) (PDF) Specifications SKU 860750 Color Black Container Size 5 Gallon Base Waterbased Odor Low odor Setting Quick setting