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Dynamat 21100 DynaPad 32" x 54" x 0.452" Thick Non-Adhesive Sound Deadener

by Dynamat
4.5 out of 5 stars 22 customer reviews
| 5 answered questions
List Price: $219.95
Price: $102.03 & FREE Shipping. Details
You Save: $117.92 (54%)
Only 19 left in stock (more on the way).
Want it tomorrow, April 8? Order within and choose One-Day Shipping at checkout. Details
Ships from and sold by Amazon.com in easy-to-open packaging.
  • Enter your model number above to make sure this fits.
  • One 12 square-foot sheet
  • Apply under carpet to block extraneous noises
› See more product details
47 new from $98.90
This item’s packaging will indicate what is inside and cannot be hidden.
$102.03 & FREE Shipping. Details Only 19 left in stock (more on the way). Ships from and sold by Amazon.com in easy-to-open packaging.

Frequently Bought Together

  • Dynamat 21100 DynaPad 32" x 54" x 0.452" Thick Non-Adhesive Sound Deadener
  • +
  • Dynamat 10455 18" x 32" x 0.067" Thick Self-Adhesive Sound Deadener with Xtreme Bulk Pack, (Set of 9)
  • +
  • Dynamat 13100 1-1/2" Wide and 30' Long DynaTape Sound Deadener
Total price: $261.48
Buy the selected items together

Product Information

Technical Details

Brand Dynamat
Model 21100
Item Weight 15.3 pounds
Product Dimensions 35 x 7 x 7 inches
Origin China
Item model number 21100
Exterior Smooth
Manufacturer Part Number 21100
OEM Part Number 21100
ABPA Partslink Number 21100

Additional Information

ASIN B001KM5IZO
Customer Reviews
4.5 out of 5 stars 22 customer reviews

4.5 out of 5 stars
Best Sellers Rank #9,257 in Automotive (See top 100)
#17 in Automotive > Interior Accessories > Insulation & Noise Control
#17 in Automotive > Replacement Parts > Body & Trim > Body > Insulation
Shipping Weight 14.8 pounds (View shipping rates and policies)
Domestic Shipping This item is also available for shipping to select countries outside the U.S.
International Shipping This item can be shipped to select countries outside of the U.S. Learn More
Date First Available April 3, 2007

Warranty & Support

Warranty, Parts:PartsWarranty, Labor:Full Manufacturer's Warranty - Sold by Authorized Reseller
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Customer Reviews

Top Customer Reviews

5.0 out of 5 starsexcellent
By Doug Myers on January 23, 2012
Verified Purchase
I had previously laid down Dynamat on floor, over wheel wells, and so forth. Though I believe Dynamat is great, some remnant noise remained from wheels. I placed Dynapad only at selected places since it is a bit heavier, e.g., on inner wheel wells, on the strip in inner door that is over the wheels, I am extremely pleased with the result. Dynapad is great and it is evident even from the texture of it, that it is high quality. The remnant noises I previously heard from the rear wheel wells are vastly diminished or gone completely.
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5.0 out of 5 starsShhhhh!, Quiet!
By Rainman69 on April 6, 2010
Verified Purchase
Works!, what more can I say. Completely gutted and sound deadened my 2002 Ram Air T/A interior with 36 sheets of DynaMat and two rolls of DynaPad. Much quieter, barely discernible road & exhaust noise. New sound system kicks now with added insulation. Can actually use hands free Bluetooth without having to yell in microphone.

Expensive but worth it now that I installed it. The DynaMat Pro Roller is a must for install.
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3.0 out of 5 starsSort of...
By Brian D. Larson on December 16, 2013
Verified Purchase
While this is the second time I've ordered Dynapad through this seller, this time it was different. Correct thickness, correct material, up until the top layer. Whereas normal Dynapad has a waterproof plasticy/rubbery layer, this one was more or less bare foam. It shouldn't impact me in this case, as I've sealed my car up tight and waterproofed the bare metal before I applied my sound deadening materials, but the difference in product leads me to wonder first about the legitimacy of this product as supplied by the seller, and second about the quality control of the folks at Dynamat.
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5.0 out of 5 starsHeavy Duty
By Bradley 98 on January 11, 2012
Verified Purchase
This stuff is heavy and thick. It does not have an adhesive backing.
It will be just enough to cover the entire cabin area of a car under the seats.
It is basically heavy rubber sandwiched between two layers of neoprene. (Closed cell foam.)
There is no doubt that this will provide some serious sound dampening qualities to cut road noise.
I recommend it.
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5.0 out of 5 starsHigh quality product.
By 951Matt on January 22, 2016
Verified Purchase
My first time doing a job like this. Very easy to work with. Very easy to install and cut. Seems like a high quality product. I used it on the floor of my 1988 Porsche 944 Turbo. I used one piece on the driver's side and one on the passenger side. After cutting out for the front seats, I had enough to cover the rear wheel wells. Very happy with this product.
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1.0 out of 5 starsnot as advetised
By unhappy customer on July 25, 2012
Verified Purchase
SOUNDS GREAT SHOWS A PICTURE OF THE ORIGINAL DYNAPAD AND WHEN IT'S DELIVERED THE PRODUCT IS NOT AS SHOWN! THEY WILL TELL YOU IT'S A BULK - COMMERCIAL CUT FROM A LARGE ROLL BUT IT'S NOT THE QUALITY DYNAPAD DOCUMENTED LOGO MATERIAL I HAVE PURCHASED IN THE PAST FROM OTHERS. SO MUCH FOR LOOKING TO GET A BARGAIN. IF IT SOUNDS TOO GOOD TO BE TRUE ...IT IS! HERE'S THE KICKER ... EVEN WHEN AMAZON RULED THEY SHOULD REIMBURSE ME THEY DID CANCEL THE RESTOCK FEE BUT STILL RIPPED ME OFF AND CHARGED ME THE RETURN SHIPPING. SO NOW I HAVE HAVE NOTHING AND IT COST ME OVER $35.00 ... BEWARE!!! THEY STINK!!!! IT'S NOT REAL ...YOU HAVE BEEN WARNED!!
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5.0 out of 5 starsExceeds Expectations
By VTSoundMan on June 25, 2014
Verified Purchase
This sound deadener works wonders. I put it in my Jeep JK Rubicon and it really reduced the sound levels! I didn't record the DB levels before, so any readings now are useless (sorry about that). The reduction in sound from the floor boards is substantial (a surprising amount comes up through the floor on the jeep). Coupled with Stinger Expert 80mil Roadkill, my 2007 Jeep is quieter than the brand new ones coming from jeep.

The Jeep's exhaust radiates quite a bit of heat into the passenger compartment...it was noticeable before and is noticeable now. I have not seen a huge reduction in heat passed into the cabin.

I am now able to use the speakerphone! This was not possible before - and even required the use of an aggressive trucker style noise canceling headset.

There is a little outgassing smell, but it is akin to that new car smell. It only shows up on very hot days and is pretty mild.
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5.0 out of 5 starsBought this hoping would help make thinks quieter in my ...
By Amy Jacomella on March 15, 2016
Verified Purchase
Bought this hoping would help make thinks quieter in my 1996 hummer. The hummer has a old school diesel motor in there, not the type of diesel now days in cars and trucks. Helped a lot , would by again
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