- Product Type:Waterborne Sealant
- Application Area:Lap Sealing, Joints, Air Ducts, Board Facings, FSK Jackets, All Service Jackets (ASJ), AC Ducts, FRK Jackets
- Compatible Substrates & Surfaces:Aluminum, Metal, Galvanized Steel, Steel
- Application Method:Trowel, Brush
- Features:Fire-Resistant, Durable, Flexible, Water-based, Odorless
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.