0050206269541

Model WBA10.5

Internet #100396972

Store SKU #678439

Store SO SKU #1000682922

10.5 oz. Water Based Duct Sealant Tube

$4.86 /each

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Product Overview

Master Flow Water Based Air Duct Sealant helps seal all types of air ducts to reduce the risk of conditioned air leakage. Sealing air duct plenums, takeoffs, elbows, and vent boots where they connect and sealing the seams, per product instructions, may help save energy. 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. It dries to a tough, flexible, and weather resistant seal. It adheres to many surfaces like: drywall, foam and fiberglass insulation, galvanized steel, aluminum, masonry, and wood. This product is also available in 1/2 gallon tub.

  • Fiber-Reinforced
  • Weather Resistant
  • Non-Flammable
  • Low Odor
  • Earns LEED Credits
  • UL Listed

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Customer Questions & Answers

2 Questions2 Answers

Customer Questions & Answers

10.5 oz. Water Based Duct Sealant Tube
10.5 oz. Water Based Duct Sealant Tube

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1 answer

Can this be used to seal the connection between the blower assembly and outgoing exhaust pipe inside the furnace?

This question is from 10.5 oz. Water Based Duct Sealant Tube
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January 6, 2016
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January 8, 2016
Answer: 
Thank you for contacting MasterFlow ... This product can be used in this application as long as the temperature does not exceed 120 degrees F. Do not use if temperature exceeds this range. Please call Technical Services at 800-211-9612, M-F 8A-5P ET, with any additional questions.
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1 answer

will it work under water

This question is from 10.5 oz. Water Based Duct Sealant Tube
Asked by
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August 28, 2015
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Pasadena, md
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Home Improvement Profile: DIYer
September 28, 2015
Answer: 
Being water based I really, really, really doubt it. Why would you have an air duct underwater? An air duct underwater is going to need to be very special.
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  • 2016-08-24 T15:48:55.601-05:00
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Customer Reviews

Rated 2.0 out of 5 by 4 reviewers.
Rated 1.0 out of 5.0 by Don't buy this I purchased two tubes of this stuff. I opened the first tube and it was dried out. I picked up the second tube to find it had already had the tip cut open. It was dried out too. Must have been returned to the store and just placed back on the shelf. Totally unhappy with this product and the store. March 13, 2014
Rated 1.0 out of 5.0 by Sealant was dried up inside the tube! Right after I bought this sealant from Home Depot, I placed it in my caulking gun, cut off the tip and punctured the seal, but when I squeezed the gun, the only thing that came out was a smelly, clear liquid that dripped all over the place. Everything else inside the tube had dried up. Frustrating! February 17, 2014
Rated 3.0 out of 5.0 by Quite OK, contains VOCs The manifacturer hides behind different names, the MSDS shows presence of VOCs that are not listed nor mentioned on the product. Thus 3 stars. November 6, 2011
Rated 3.0 out of 5.0 by defective tubes some tubes were defective. no end cap in tube. ruined a calking gun and had to go back for more mastic. December 6, 2011
  • 2016-08-26 T12:33:07.992-05:00
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