Aeroseal vs Mastic: Which is the Best Duct Sealing Option?

Aeroseal is a more effective and cost-efficient option for duct sealing than manual putty. Learn more about the advantages of Aeroseal over putty and how it can improve indoor air quality.

Aeroseal vs Mastic: Which is the Best Duct Sealing Option?

Studies have shown that Aeroseal is a more effective and cost-efficient option for duct sealing than manual putty. The Aeroseal machine applies the sealant automatically, while putty requires labor-intensive manual application. Putty is an older method of sealing ducts that is not as effective as Aeroseal. Our sealant is the only option for spray sealants that come out through ducts using a computerized system to detect and seal leaks inside air ducts.

Putty is an adhesive sealant that can be applied to leaks and holes with a brush or caulking gun, but it can be quite messy and may not be enough for larger holes or cracks. Duct sealing is the process of plugging all holes, leaks, and cracks in the ducts, usually with an aerosol spray. Aeroseal's duct sealant is a stable, non-toxic, flammable emulsion of water and vinyl acetate polymer that aerosolizes into 4 to 10 micron particles and is distributed under pressure throughout the interior of an air duct system. This sealant was invented and developed at the Lawrence Berkeley National Laboratory in 1994 and seals leaks by injecting spray vinyl polymer sealant particles into a pressurized duct system.

The biggest advantage of Aeroseal over putty is the way it is applied. Homeowners and commercial businesses can benefit from this automated process, which reduces labor hours and improves sealing results. Additionally, using Aeroseal to seal air ducts will reduce the risks of flue gases entering your home or workspace and will further improve indoor air quality by reducing exposure to fumes from household and garden chemicals, insulation particles, and dust that can aggravate asthma and allergy problems. Aeroseal may be one of the most expensive duct sealing options, but it's also very effective and provides long-lasting results.