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 ductboard and flex duct.

Red Devil® F-Seal® Water-Based Duct Sealant, 1 gal Net Content, Tub Container, Composition: Calcium Carbonate, Ethyl Acrylate, Titanium Dioxide, Quartz, Petroleum Distillates, Solvent-Dewaxed Heavy-Paraffinic, Liquid Form, White, Mild Odor/Scent, 1 hr Dry Time, 8 to 9 pH, 1.5 to 2 Specific Gravity, 93.33 deg C Flash Point, <25 g/L VOC, Applicable Materials: Fiberglass Duct Board, Flex Duct, Metal, -4 to 200 deg F Service, 35 to 110 deg F Storage

Note: This is a closeout item with limited stock available. Please contact your branch for availability.