Duct Insulation Adhesives

For lining and wrapping sheet metal ductwork, Aeroflex USA offers AEROFLEX Aeroseal, REF 1520TM, and Aeroseal LVOCTM adhesives for the installation of AEROFLEX Breathe-EZTM EPDM Duct Insulation.
Aeroflex USA does not offer an aerosolized spray adhesive for the installation of AEROFLEX Breathe-EZTM. We recommend that duct fabricators and insulators check with preferred adhesive manufacturers for their recommended spray adhesives to line and wrap ductwork with closed-cell elastomeric foam.

Care must be taken when selecting an aerosolized spray contact adhesive to bond closed-cell elastomeric foam duct insulation to sheet metal ductwork. Water-based adhesives utilized to install fiberglass and other open-cell duct insulation types will not perform as intended with closed-cell duct insulation. Due to the closed-cell structure of elastomeric duct liner & wrap, water-based adhesives take an exceptionally long time to dry (days) because the water in the adhesive has nowhere to evaporate between two virtually impervious surfaces – sheet metal and closed-cell insulation.

Well-known adhesive manufacturers that offer aerosolized spray adhesives to the duct fabrication and insulation market do offer products engineered to direct adhere closed-cell elastomeric foam to sheet metal, however they are generally solvent-based, or hybrid low-VOC versions that comply with LEED® and local jurisdiction air quality requirements (i.e. California).
Below are a few well-known duct insulation adhesive manufacturers, and their adhesives available in aerosolized cylinders, that are formulated to bond closed-cell elastomeric foam to sheet metal:

3M – Hi-Strength 90 Spray Adhesive, Hi-Strength Postforming 94CA Spray Adhesive, Hi-Strength 94ET Spray Adhesive Low VOC <20%
Design Polymerics – DP 2595 Closed-Cell Foam Spray Adhesive
Ductmate – Quick-StickTM HS
Duro Dyne – NPAB40, NPAC40
Hardcast – Non-Flam TRAVEL-TACK, Low-VOC TRAVEL-TACK