- Product Type:Waterborne Sealant
- Application Area:Board Facings, Air Ducts, FSK Jackets, AC Ducts, All Service Jackets (ASJ), FRK Jackets, Lap Sealing, Joints
- Compatible Substrates & Surfaces:Galvanized Steel, Metal, Aluminum, Steel
- Application Method:Trowel, Brush
- Features:Odorless, Durable, Flexible, Fire-Resistant, Water-based
Foster® Air-Tight™ FDS-181 Duct Sealant is a fire-resistant, fibrate, water-based sealant designed for use on indoor or outdoor low, medium, and high-velocity heating and air conditioning ducts. It serves as a robust and flexible adhesive and sealant, creating a durable seal to prevent air leakage on the faced duct board, flex duct, galvanized aluminum, and stainless steel metal ducts.