Water-Based Duct Sealant F-Seal 181
 
F-Seal 181® is specially formulated fiber-reinforced water-based duct sealant for indoor/outdoor use. Suitable for pressure sealing all types of HVAC duct systems including metal, fiberglass duct board, and flex duct.
 
Indoor/Outdoor Use
Fast Dry Time
Excellent Adhesion
Excellent Flexibility
Low VOC
Exceeds all SMACNA Pressure and Sealing Classes
Mold and Mildew Resistant
Seals High, Medium, and Low-Pressure HVAC Duct Systems