Air Duct Sealant

In a typical house however about 20 to 30 percent of the air that moves through the duct system is lost due to leaks holes and poorly connected ducts.

Air duct sealant.

The sealant is fiber reinforced and easy to apply by brush gloved hand or putty knife to flex duct duct board and sheet metal air ducts. The mastic duct sealant foil is also uv resistant mold and mildew resistant and will hold up to water moisture most chemicals and any weather conditions. Our non toxic water based formula effectively seals all the holes in the air ducts and vents making sure the air goes where you need it not where you don t. It adheres to many surfaces like.

Duct sealing by michael church here and in this video we re going to show you how and why it s very important to air seal the run of the ductwork. Dap high temp 100 rtv silicone sealant 10 3 fl oz red duct sealant. Sealing air duct plenums takeoffs elbows and vent boots where they connect and sealing the seams per product instructions may help save energy. We connect our proven technology to your home or business heating air system to distribute the sealing formula.

Rated for indoor or outdoor use you can apply this anywhere you have an air leak. Master flow water based air duct sealant helps seal all types of air ducts to reduce the risk of conditioned air leakage. You all have duct work either in your attic or crawlspace or something like that. 3m aluminum foil tape 3340 2 5 x 50 yd 4 0 mil silver hvac sealing and patching hot and cold air ducts fiberglass duct board insulation metal repair 4 7 out of 5 stars 452 16 98 16.

The sealant is fiber reinforced and easy to apply by brush gloved hand or. Air duct sealing video transcript. Closure systems used with flexible air ducts and flexible air connectors shall comply with ul 181b and shall be marked181b fx for pressure sensitive tape or 181b m for mastic. Drywall foam and fiberglass insulation galvanized steel aluminum masonry and wood.