







🔇 Silence the noise, feel the difference — your car’s new best-kept secret.
AggSound’s 4mm Sound Deadening Mat delivers professional-grade noise and heat insulation with a triple-layer design featuring high-density closed cell foam and a powerful adhesive backing. Covering 55.41 sqft, it reduces heat transfer by 98% and fits seamlessly on multiple vehicle surfaces, ensuring long-lasting durability and easy installation for a quieter, cooler driving experience.
















| ASIN | B0BWD1M9Y5 |
| Best Sellers Rank | #3,212 in Automotive ( See Top 100 in Automotive ) #7 in Automobile Insulation |
| Brand | AggSound |
| Brand Name | AggSound |
| Coverage | 1.42 square_feet |
| Customer Reviews | 4.3 out of 5 stars 1,684 Reviews |
| Included Components | car sound insulation |
| Item Dimensions L x W | 15.7"L x 13"W |
| Item Thickness | 157 Mils |
| Item Type Name | car sound insulation |
| Manufacturer | AggSound |
| Material | 157mil-Closed Cell Foam |
| Material Type | 157mil-Closed Cell Foam |
| Product Dimensions | 15.7"L x 13"W |
| Unit Count | 55.0 Square Feet |
C**.
As described, very sticky backing..
Very sticky backing. Once it down ,its down. Good sound barrier, and help the vibration of the gas tank I carry on the truck.
L**T
Expensive but works like nothing else.
Expensive but works like nothing else. Sure deadens sound on cab of ice cream truck. If you brush against it too hard it could tear or chip off but otherwise very durable. One inch thick and soft as a mat.
N**L
Good, with some things to note...
Works decently enough. A few things to note. It tears quite easily. It sticks to your fingers and will tear if you are not careful when tryin to remove. Once its stuck, its stuck. It will be messy to remove if needed. It looks a little like neoprene as some suggest it is, but it is not. Just a basic low grade closed cell foam. It does the job for sound insulating though!
M**0
Easy to work with and apply this great deadening material!
The material was well packaged and arrived in good condition. The material is easy to work with, and the adhesive is very sticky. The material is very easy to cut and apply. I applied it to a metal cabinet that had a tinny ring to it before the application. After applying the material, tapping the cabinet produced only a dead "thump". I believe the material will work very nicely as a deadener.
N**E
I ll buy more
Excellent product used it to cover my generator in rv and now you can be on top of generator and not hear it at all. I d buy more
S**S
Cumple su funcion si lo dejas permanente
Es bueno pero una vez pegado si lo quieres despegar se despedaza haciendolo dificil de retirar.
C**A
Good price
Great value for the amount you get. The quality is really nice and the glue is super strong. Once it sticks it’s on there for good.
D**F
Sound deadning material
Works very well on the floor of my van, helps reduce noise levels. Easy to apply.
Trustpilot
1 month ago
3 days ago