Search  for anything...
ALLWIN

Car Heat Sound Deadening Insulation Mat, - 394 Mil 10.8 Sqft Automobile Sound Deadening & Heat Insulation Material for Auto Hood Engine Roof Door and Trunk,40 Inch x 40 Inch, Aluminum Foil Finish

  • Based on 351 reviews
Condition: New
Checking for the best price...
$23.39 Why this price?
Save $14.60 was $37.99

Buy Now, Pay Later

As low as $5 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Wednesday, Jun 10
Order within 16 hours and 20 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Material Type: 394 Mil


Style: 40 x 40"(10.8sqft)


Features

  • Sound deadening material size: Nominal thickness 394 mils; Total coverage area of 10.8 sqft; Nominal sheet Size 40x40 inches. working Temperature Range: -40F ~ 300F
  • Heat Insulation and Vibration Deadener: Effectively blocks 98% of radiant heat transfer. Sound deadening mat is a very versatile insulation material with excellent thermal barrier properties that will block engine, exhaust, & summer heat, ensuring your vehicle stays cooler in the summer and warmer in the winter, making your ride more pleasant!
  • Automotive self-adhesive insulation is a waterproof lightweight thermal deadener with a highly compressible closed-cell foam formulation, it absolutely doesnt absorb moisture and has no odor
  • The sound dampening mat can be applied to external partitions, firewalls, hoods, engine compartments, engine compartments, trunks, wheel arches, body panels, load floors, and internal partitions under the seat floor.
  • The sound dampening material comes in handy size sheets which make it easier in terms of the cutting and installation process and its flexible which makes it easy to install with or without a roller.

Description

394 mil (10 mm) Car Sound Deadening & Heat Insulation Closed Cell Foam - PE Foam Sound DeadenerStrong sound insulation and absorption performance, heat insulation, Reducing energy consumption with the strong performance of heat insulationStrong self-viscous performance

Material: 394 Mil


Brand: ALLWIN


Item Thickness: 10 Millimeters


Recommended Uses For Product: Automobile sound deadening, heat insulation, and vibration reduction for external partitions, firewalls, hoods, engine compartments, trunks, wheel arches, body panels, load floors, and internal partitions under the seat floor. See more


Product Dimensions: 40"L x 40"W


Brand Name: ALLWIN


Manufacturer: ALLWIN


UPC: 616943705379


Manufacturer Part Number: AL4040


Model Number: AL4040


Included Components: Sound deadening mat


Unit Count: 1.0 Count


Item Type Name: Sound deadening mat


Item Thickness: 10 Millimeters


Item Dimensions L x W: 40"L x 40"W


Coverage: 10.8 square foot


Material Type: 394 Mil


Recommended Uses For Product: Automobile sound deadening, heat insulation, and vibration reduction for external partitions, firewalls, hoods, engine compartments, trunks, wheel arches, body panels, load floors, and internal partitions under the seat floor.


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jun 10

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Helps divert heat and sound
Material Type: 197 Mil Style: 40 x 40"(10.8sqft)
I went to work came home and my wife had it installed on our TJ Wrangler jeep on the undercarriage around the transmission tunnel. Definitely helped divert some heat and deadening of some road noise. That’s my farm girl. Great job sweetheart.
Reviewed in the United States on January 23, 2025 by Wally J
    • Works plain and simple
Material Type: 197 Mil Style: 40 x 40"(10.8sqft)
Stuff works. I have an old XJ and when I redid the headliner I decided to throw some of this in really quick. Took 5 mins to get most of it in and it significantly helped reduce noise. I have a roof rack and light set up and doesn’t do well against a wind or airflow and was creating a lot of noise on the highway and now it’s literally silent. ... show more
Reviewed in the United States on February 21, 2025 by Blake Clover
    • Quiet cool ride!
Material Type: 394 Mil Style: 40 x 40"(10.8sqft)
Review Image by skylar skylar
This stuff is a great value! The adhesive is surprisingly strong and the foam is thick yet firm, and easy to trim eith a razor. My vehicle has a straight piped 318 Mopar engine that was annpyingly loud in the cab this product has cut the noise in more than Half! The install was straight forward and I could not be happier with the results! The size was perfect for the footwell and under seat, to do a full floor in a medium suv (1984 dodge ramcharger) I would say 8 sheets are needed I did just the front area and wished I would have dor the rest right away. ... show more
Reviewed in the United States on September 24, 2024 by skylar skylar
    • Good Product
Material Type: 394 Mil Style: 40 x 40"(10.8sqft)
This product met the requirements that I expected from it. It stays put and sealed well.
Reviewed in the United States on October 28, 2024 by Reuben Riley
    • Seems to work very well. Used on VW engine cover.
Material Type: 394 Mil Style: 40 x 40"(10.8sqft)
The original foam noise insulation mat on my 13 VW Touareg engine cover had turned dry and crumbly after almost 11 years. Several chunks were falling and tearing off. I wanted a new one. But they are NOT sold by Volkswagen, only the entire engine cover $$$. This sound mat works great. It was not hard to work with. I cleaned the engine cover, measuring the old foam insulator first and making a cardboard template. Then with a scraper and acetone, I removed the old insulation foam, and followed up with sandpaper and acetone. I cut the new insulation with a utility knife on a breadboard, and did small trim with industrial scissors. In about an hour, I had a new foam insulator, and it works. Engine noise is a little bit better than before, and it has held up to engine heat. ... show more
Reviewed in the United States on January 7, 2024 by ToolmanJohn
    • Short changed by fraction of inches
Material Type: 394 Mil Style: 40 x 24"(6.5sqft)
Review Image by Audrey N. Audrey N.
Review Image by Audrey N. Audrey N.
40x24 translates to 38.125 x 23.25 Kinda petty but whatever.
Reviewed in the United States on January 18, 2025 by Audrey N. Audrey N.
    • Good stuff
Material Type: 394 Mil Style: 40 x 40"(10.8sqft)
I put it inside my hard side saddle bags on a 650 klr. Keeps the exhaust heat off my groceries.
Reviewed in the United States on January 6, 2025 by Phillip Meekins
    • Sound barrier
Material Type: 394 Mil Style: 40 x 40"(10.8sqft)
Great item for the price. Used it to insult my generator shed.
Reviewed in the United States on December 28, 2024 by Moeen Khan

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...