---
product_id: 521423996
title: "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"
brand: "allwin"
price: "486.61 DT"
currency: TND
in_stock: true
category: "Allwin"
url: https://www.desertcart.tn/products/521423996-car-heat-sound-deadening-insulation-mat-394-mil-10-8
store_origin: TN
region: Tunisia
---

# 10.8 sqft coverage for broad application Blocks 98% radiant heat transfer 394 mil thickness for ultimate barrier 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

**Brand:** allwin
**Price:** 486.61 DT
**Availability:** ✅ In Stock

## Summary

> 🚗 Silence & Coolness, Engineered for the Modern Driver

## Quick Answers

- **What is this?** 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 by allwin
- **How much does it cost?** 486.61 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/521423996-car-heat-sound-deadening-insulation-mat-394-mil-10-8)

## Best For

- allwin enthusiasts

## Why This Product

- Trusted allwin brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Waterproof & Odorless:** Closed-cell foam keeps moisture out and your cabin fresh, no funky smells.
- • **Premium 394 Mil Thickness:** Robust 10mm foam shields your ride from noise and heat like a pro.
- • **Effortless DIY Installation:** Flexible sheets with strong self-adhesive backing make upgrades quick and clean.
- • **Generous 10.8 Sqft Coverage:** Covers more ground for seamless insulation across hood, doors, trunk, and more.
- • **Extreme Temperature Resilience:** Operates flawlessly from -40°F to 300°F—ready for any climate challenge.

## Overview

The ALLWIN Car Heat Sound Deadening Insulation Mat is a 394 mil thick, 10.8 sqft aluminum foil finished foam designed to dramatically reduce engine noise and block 98% of radiant heat. Its waterproof, odorless closed-cell foam withstands temperatures from -40°F to 300°F, making it ideal for multiple automotive surfaces including hoods, doors, trunks, and engine compartments. Easy to cut and install with self-adhesive backing, it enhances driving comfort by maintaining cabin temperature and reducing vibrations.

## 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

## Features

- Sound deadening material size: Nominal thickness 394 mils; Total coverage area of 10.8 sqft; Nominal sheet Size 40x40 inches. working Temperature Range: -40°F ~ 300°F
- 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 doesn’t 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 it’s flexible which makes it easy to install with or without a roller.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BNPZZ71X |
| Best Sellers Rank | #5,519 in Automotive ( See Top 100 in Automotive ) #7 in Automobile Insulation |
| Brand Name | ALLWIN |
| Coverage | 10.8 square foot |
| Customer Reviews | 4.4 4.4 out of 5 stars (744) |
| Included Components | Sound deadening mat |
| Item Dimensions L x W | 40"L x 40"W |
| Item Thickness | 10 millimeters |
| Item Type Name | Sound deadening mat |
| Manufacturer | ALLWIN |
| Manufacturer Part Number | AL4040 |
| Material Type | 394 Mil |
| Model Number | AL4040 |
| Number of Items | 1 |
| Number of Packs | 1 |
| 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. |
| UPC | 616943705379 |

## Product Details

- **Brand:** ALLWIN
- **Item Thickness:** 10 millimeters
- **Material:** 394 Mil
- **Product Dimensions:** 40"L x 40"W

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/6198HbggqtL.jpg)

## Available Options

This product comes in different **Material Type, Style** options.

## Questions & Answers

**Q: Would this work for vibration from a sound system?  Im getting rattling in my doors and hatch part..**
A: Maybe but they have sound deadener for that use.

**Q: How much thickness?**
A: Like it says 197mil/ app 1sixteenth thick

## Frequently Bought Together

- 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
- Car Sound Deadening Roller Metal Installation Tool 3 Pcs for Auto Noise Roller Car Sound Deadener Application Installation Tool Rolling Wheel Interior Accessories
- Siless 80 mil (2mm) 36 sqft (3.4 sqm) Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material (36 sqft)

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.tn/products/521423996-car-heat-sound-deadening-insulation-mat-394-mil-10-8](https://www.desertcart.tn/products/521423996-car-heat-sound-deadening-insulation-mat-394-mil-10-8)

---

*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-09-29*