Credit: Aeroseal, LLC

What makes this product green?

  • Reduces heating and cooling loads
  • Prevents moisture or air quality problems


Aeroseal uses an aerosolized chlorine-free vinylCommon term for polyvinyl chloride (PVC). In chemistry, vinyl refers to a carbon-and-hydrogen group (H2C=CH–) that attaches to another functional group, such as chlorine (vinyl chloride) or acetate (vinyl acetate).-acetate polymer to seal leaks in commercial and residential duct work. This sealant is blown into a pressurized duct system as a fogTo fog a room or building is to use a fog machine during a blower door test, revealing locations of air leaks where the fog escapes. The fogging material is usually a glycol-based solution, completely non-toxic. and remains airborne until the adhesive particles are pushed into leaks, where they then attach to the edge of any crack or hole to fill the void. Aeroseal can seal leaks as large as one inch, even in inaccessible areas, and is appropriate for both new installations and retrofits. Before and during Aeroseal application, the duct system is pressurized to diagnose and monitor air leakage. Ducts are cleaned, and all return and supply grilles are sealed to avoid damage to occupied spaces. According to Lawrence Berkeley National Laboratory, developer of the Aeroseal technology, leaking ducts are responsible for as much as 40% of the energy lost from heating and cooling systems. Aeroseal can reduce leakage by 90%, according to the company. The UL-listed Aeroseal has a ten-year warranty.


Manufacturer Information

Aeroseal, LLC
7989 South Suburban Road Centerville
Indianapolis, OH 45458
Toll-free: 877-349-3828

Listed in: Duct Mastic


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