Duct liner is typically attached to duct walls by two fastening methods one with mechanical fasteners and the other with adhesive. Mechanical fasteners are utilized to prevent delamination of the liner while adhesives bond the liner to the metal ensuring that air flow can not intrude between the two materials. The choice of an adhesive is affected by several factors some of which are the method of application, acceptable dry time, solvent type. Duro Dyne PAB40/PAB187 is a web type, high-solids, general-purpose adhesive that bonds well to a wide variety of substrates, with one side or two side application. This black liner adhesive can also be used as an effective edge coating. It has a quick tack, is flexible, non-wrinkling and waterproof.

Duro Dyne® Foam Adhesive Canister, 40 lb Net Content, Can Container, Black, Mild Solvent Odor/Scent, <80 g/L VOC, 65 to 95 deg F

• Dual purpose liner adhesive and edge coating
• Low VOC organic compound
• No methylene chloride (dichloralmethane)
• High solids and high strength
• Flexible non-wrinkling
• Very fast tacking
• Appropriate for edge coating