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Red Devil Duct Sealant SolutionsAdhesives, Sealants & Coatings

Red Devil Duct Sealant Solutions

Red Devil®, a leading manufacturer of caulks, sealants and painter’s hand tools, offers a full line of duct sealants for professional HVAC contractors and DIYers.

Red Devil’s versatile lines of duct sealants include D-Seal® Water-Based Duct Sealant and F-Seal® Water-Based 181 Duct Sealant, both offering superior adhesion for sealing metal and flexible ducts, vents, air conditioners and other interior and exterior HVAC appliances.

Designed for use in conjunction with metal fasteners, Red Devil D-Seal is a smooth, water-based duct sealant suitable for all types of HVAC duct systems including metal ductwork, fiberglass, and duct board. Ideal for commercial HVAC applications, D-Seal is specially formulated for permanent flexibility and adhesion. It has excellent water-resistance and sealing strength, exceeding all SMACNA Pressure & Sealing Classes and is UL 181A-M and B-M approved.

Designed for indoor and outdoor use, D-Seal® features a fast dry time on high, medium and low-pressure systems as well as UV, mold and mildew resistance and low VOC. D-Seal is available in gray in 10.1 oz. and 28 oz. cartridges as well as 1-gallon, 2-gallon and 5-gallon pails.

Delivering many of the same benefits as D-Seal, Red Devil’s fiber-enhanced F-Seal 181 features innovative fiber reinforcement for superior sealing strength and workability. Formulated for sealing both fiberboard and flexible ducts, F-Seal is ideal for interior and exterior residential ductwork. It also offers a fast dry time, mold and mildew resistance (when cured) and exceeds all SMACNA Pressure & Sealing Classes and is UL 181A-M & B-M approved. Designed for any sized sealing job, F-Seal 181 is available in white or gray in 28 oz. and 10.1 oz. cartridges as well as 1-gallon, 2-gallon and 5-gallon pails.

Red Devil provides tool and chemical products for professionals and do-it-yourselfers including painters’/drywall tools, putty knives, wall scrapers, taping knives, adhesive spreaders, utility knives, acrylic latex/silicone sealants, foam sealant, spackling/glazing compounds, and construction adhesives.

To learn more about the RED DEVIL D-Seal and F-Seal 181, visit