#1 Home Improvement Retailer

Internet #202907021

Model #AC-DMS 0.5

Store SO SKU #1000682558

1/2 Gal. Water Base Duct Mastic Sealant

$2048
  • Features a weather-resistant design
  • Specifically designed for easy application
  • Suitable for use with fiberglass and flexible air ducts
  • View More Details

Frequently Bought Together

Top Rated
+
+
Price:
$2048

Product Overview

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

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents. Download a free copy from the Adobe Web site.

Specifications

Dimensions

Product Depth (in.)
6
Product Height (in.)
8.0
Product Size (oz.)
64.0
Product Width (in.)
6.0

Details

Color
Light Gray
Full cure (hours)
72.0
Minimum Temperature (F)
0.0 °F
Product Weight (lb.)
5.5
Returnable
90-Day

Warranty / Certifications

Manufacturer Warranty
1 Year

Questions & Answers

Typical questions asked about products:

  • Is the product durable?
  • Is the product easy to use?
  • What are the dimensions of the product?

Customer Reviews

  • 4.7
    out of 40 reviews
  • 95% recommend this product
Filter by:
Showing 1-30 of 40 reviews
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 people found this helpful
by
    by
    • Verified Purchase
    Rating provided by a verified purchaser...
    Rating provided by a verified purchaser
    by
    • Verified Purchase
    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 person found this helpful
    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 people found this helpful
    Rating provided by a verified purchaser...
    Rating provided by a verified purchaser
    by
    • Verified Purchase
    Worked as described...
    Worked as described
    by
    • Verified Purchase
    Easy to use and easy clean up. Great stuff....
    Easy to use and easy clean up. Great stuff.
    by
    • Verified Purchase
    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
    This is a thick, pasty, fibrous, grey-colored mastic that worked...
    This is a thick, pasty, fibrous, grey-colored mastic that worked great for me. Fills every gap (of course you should use a mesh tape for gaps bigger than 1/8"), doesn't run even when working overhead. I used about 1/3 of the tub so far but I'm about 1/3 done, still have many more joints to seal in my system, my house is 2400sf. Might have to buy a tube instead of a 1/2gal tub just to finish. Bought on-line for pick up at my store, I wished they'd just stock this brand instead of the other one (which doesn't get good reviews).
    by
    • Verified Purchase
    1 person found this helpful
    Works well....
    Works well.
    by
    • Verified Purchase
    Great stuff...
    Great stuff
    by
    • Verified Purchase
    thicker than expecting....
    thicker than expecting.
    by
    • Verified Purchase
    Nice and thick. Does the job well....
    Nice and thick. Does the job well.
    by
    • Verified Purchase
    Product was easy to apply and goes a long way, I sealed 6 splits in my HVAC duct work. Highly re...
    Product was easy to apply and goes a long way, I sealed 6 splits in my HVAC duct work. Highly recommend this product to fix leakage in old duct work that was not sealed.
    by
    • Verified Purchase
    • Recommended
    Great product. Very easy to apply with a small brush:...
    Great product. Very easy to apply with a small brush: not to gooey and not to liquid. Once set, it feels strong, partly due to the fibers embedded in it. No smells. The bucket can be closed and used a few weeks later without getting dried during that time.
    by
    • Verified Purchase
    It wasn’t as water proof as I thought it would...
    It wasn’t as water proof as I thought it would be, but it serves its purpose.
    by
    • Verified Purchase
    I chose this (online-only at time of purchase) product over other products based on the reviews, ...
    I chose this (online-only at time of purchase) product over other products based on the reviews, and was not disappointed. This mastic is water-based and easy to work with. Consistency is similar to drywall joint compound. It can be applied with a brush, although thicker applications will benefit from a putty knife to work into the joints before being brushed smooth. Cleanup is easy with soap and water. It takes a few hours to dry.
    by
    • Verified Purchase
    • Recommended
    Great product. Thank you
    Great product. Thank you
    by
    • Verified Purchase
    • Recommended
    This stuff works just fine, spread with a bondo squeegee....
    This stuff works just fine, spread with a bondo squeegee. You can sand to smooth it.
    by
    • Verified Purchase
    1 person found this helpful
    Goopy
    This stuff is quite goopy. It did seal up all the air holes where the different pieces of sheet metal came together at the plenum... once I got it on there. Very sticky. Took a week to dry. Never put it on a sandwhich.
    by
      • Recommended
      Great product and performed as expected. Would buy it again if need came up!
      Great product and performed as expected. Would buy it again if need came up!
      by
      • Verified Purchase
      • Recommended
      Product is easy to work with IF you have a small spatula. I am putting around heating ducts and f...
      Product is easy to work with IF you have a small spatula. I am putting around heating ducts and furnace seams and the small spatula was an important part of the project. I got a package of painters palette spatulas and they worked great.
      by
      • Verified Purchase
      • Recommended
      3 people found this helpful
      This product is too thick. It cannot be applied with a regular brush. I'm not sure if I just got ...
      This product is too thick. It cannot be applied with a regular brush. I'm not sure if I just got a bad batch. The mastic has plenty of fibers in it, but I believe that is the problem. I had a bucket of another brand of mastic and I added this to that bucket and it was thinned out to be more manageable. Adding some water helped too. I guess this could be used as a concentrated mastic and can be stretched out to actually provide more coverage, but I don't want to go through all that.
      by
      • DIY
      • Verified Purchase
      Mastic - easy to apply and cleanup - sealing ducts under house. Better than tape!
      Mastic - easy to apply and cleanup - sealing ducts under house. Better than tape!
      by
      • Verified Purchase
      • Recommended
      1 person found this helpful
      This is the stuff the pros use... for a good reason.
      The HVAC pros use this to not only seal duct work, but also to protect taped pipes and wiring from UV and rain exposure. I used it to cover some foam insulation on my exterior water pipes to protect them before applying primer and paint to match the outside of my home. Perfect!
      by
      • DIY
      • Verified Purchase
      • Recommended
      5 people found this helpful
      Excellent product
      I used DP 1030 duct mastic to seal ridged metal HVAC ducts that ran through my unheated garage (before insulating the ducts). The mastic worked great for sealing the transition points from round to square metal HVAC ducts as well as for round adjustable elbows. DP 1030 mastic was very easy to apply by hand or with a paint brush. Fiberglass strands are premixed in the mastic which produces a very durable seal which I am confident will not crack over time. The product is surprisingly strong and flexible even after drying – I’m very impressed. HD should move this product from on-line only purchase to regular store inventory. But until they do, it’s definitely worth the wait for delivery!
      by
      • DIY
      • Recommended
      7 people found this helpful
      Seal ducts and registers leaks
      Not as thick as I would like but an overall good product. Easy to use.
      by
      • DIY
      • Verified Purchase
      • Recommended
      1 person found this helpful
      Worked Well
      I bought the stuff HD has on the shelf but after reading reviews here didn't open it, I ordered this instead. It took 8 days of shipping to get from Oregon to Ohio but otherwise I'm happy with it. It went on well, covered well, etc. I like that it has a handle to hold it when using, the other stuff doesn't. It did smell for a few hours, so I'd suggest being ready to stay clear after applying it for about 5 hours. I ran out and now have to wait another probably 10-14 days for more to arrive, so I ordered 2 more and will return one if I don't need it. For some reason 2 half gallons is cheaper than 1 gallon so that's the way to go.
      by
        7 people found this helpful
        Showing 1-30 of 40 reviews