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Internet #202907021

Model #AC-DMS 0.5

Store SO SKU #1000682558

1/2 Gal. Water Base Duct Mastic Sealant

(40)Questions & Answers (35)
  • Features a weather-resistant design
  • Specifically designed for easy application
  • Suitable for use with fiberglass and flexible air ducts
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Product Details

Speedi-Products Low to high Velocity Air Duct sealant. Non Toxic adhesive sealant. Used for permanently sealing sheet metal and flexible duct system joints. UL-181 listed rigid fiberglass and flexible air ducts. Water based non flammable fire and weather resistant. Easy application and clean up.
  • Low to high velocity air duct sealant
  • Used for permanently sealing sheet metal and flexible duct system joints
  • UL-181 listed rigid fiberglass and flexible air ducts
  • Water based non flammable fire and weather resistant
  • Easy application and clean up
  • Consult your local building codes for approved installation practices
  • Return Policy

Additional Resources

From the Manufacturer

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Specifications

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Questions & Answers

35Questions
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Q:Can u get a respiratory infection from breathing this?
by|Jan 13, 2021
1 Answer
Answer This Question

A:  See the Safety Data Sheet(SDS) on the web page under Info & Guides. Unknown if you can get an infection but it can cause irritation to the respiratory system.

by|Jan 14, 2021
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    Q:Can this be painted. I want to paint my basement ceiling after I seal all the ductwork
    by|Nov 4, 2020
    1 Answer
    Answer This Question

    A:  Yes, the mastic is water based and can be painted.

    by|Nov 6, 2020
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      Q:Can this be used for exterior applications
      by|Mar 9, 2020
      2 Answers
      Answer This Question

      A:  The product is water soluble. So it can only be used outdoors where it will be protected from moisture.

      by|Dec 20, 2021

        A:  Yes, it can be used for exterior applications.

        by|Mar 10, 2020
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          Q:Can this product be used directly on flexible duct to seal where it enters main trunk line?
          by|Jan 23, 2020
          1 Answer
          Answer This Question

          A:  Yes, refer to Instructions in the Product Overview section of web page. Secure flex duct per manufacturers instruction, then apply 2" band 20-40 mils thick to seal the connection.

          by|Feb 24, 2021
            1 found this answer helpful
            Showing 1-4 of 35
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            Customer Reviews

            4.7 out of 5
            (40)
            • 4.7
              out of 40 reviews
            • 95%recommend this product
            Filter by:
            Showing 1-10 of 40 reviews
            Jan 10, 2014
            Good for sealing drafty windows!
            The casings around our windows were very poorly sealed. This caused numerous drafts in our house. After taking the casings apart, I discovered large gaps between various construction materials around the windows. So, I bought this bucket of sealant to fill the gaps. This stuff is awesome. Just use a regular spackle knife to spread it over anything! The sealant is thick, so it doesn't drip or run through cracks. It fully-fully cured after 48 hours near the drafty windows in the winter. I attached before and after pictures. Nice!
            by
            • DIY
            • Recommended
            21 found this review helpful
            Sep 23, 2021
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              May 3, 2021
              by
              • Verified Purchase
              Jan 15, 2021
              Rating provided by a verified purchaser...
              Rating provided by a verified purchaser
              by
              • Verified Purchase
              Dec 6, 2020
              Easy to work with. Sealed very well. Air quality in...
              Easy to work with. Sealed very well. Air quality in house is much better now.
              by
              • Verified Purchase
              1 found this review helpful
              Nov 10, 2020
              Super easy application for rewrapping of HVAC ductwork sealing. ...
              Super easy application for rewrapping of HVAC ductwork sealing. Just paint it on!!
              by
              • Verified Purchase
              2 found this review helpful
              Oct 8, 2020
              Rating provided by a verified purchaser...
              Rating provided by a verified purchaser
              by
              • Verified Purchase
              Apr 21, 2020
              Worked as described...
              Worked as described
              by
              • Verified Purchase
              Mar 3, 2020
              Easy to use and easy clean up. Great stuff....
              Easy to use and easy clean up. Great stuff.
              by
              • Verified Purchase
              Jan 8, 2020
              I haven’t yet had a chance to tackle that project...
              I haven’t yet had a chance to tackle that project but it’s coming up and with any luck I’ll be able to update this rating.
              by
              • Verified Purchase
              Showing 1-10 of 40 reviews

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