---
product_id: 561954117
title: "Car Heat Sound Deadening Insulation Mat, - 394 Mil 6.5 Sqft Automobile Sound Deadening & Heat Insulation Material for Auto Hood Engine Roof Door and Trunk,40 Inch x 24 Inch, Aluminum Foil Finish"
brand: "allwin"
price: "€ 44.02"
currency: EUR
in_stock: true
reviews_count: 8
category: "Allwin"
url: https://www.desertcart.fi/products/561954117-car-heat-sound-deadening-insulation-mat-394-mil-6-5
store_origin: FI
region: Finland
---

# 6.5 sqft coverage for broad application Blocks 98% radiant heat transfer 394 mil thickness for ultimate barrier Car Heat Sound Deadening Insulation Mat, - 394 Mil 6.5 Sqft Automobile Sound Deadening & Heat Insulation Material for Auto Hood Engine Roof Door and Trunk,40 Inch x 24 Inch, Aluminum Foil Finish

**Brand:** allwin
**Price:** € 44.02
**Availability:** ✅ In Stock

## Summary

> 🛠️ Drive quieter, cooler, and smarter with ALLWIN’s ultimate insulation mat!

## Quick Answers

- **What is this?** Car Heat Sound Deadening Insulation Mat, - 394 Mil 6.5 Sqft Automobile Sound Deadening & Heat Insulation Material for Auto Hood Engine Roof Door and Trunk,40 Inch x 24 Inch, Aluminum Foil Finish by allwin
- **How much does it cost?** € 44.02 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/561954117-car-heat-sound-deadening-insulation-mat-394-mil-6-5)

## 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 repels moisture and stays fresh, no funky smells.
- • **Premium 394 Mil Thickness:** Robust multi-layer foam ensures superior sound and heat insulation.
- • **Generous 6.5 Sqft Coverage:** Covers large vehicle areas with fewer sheets, speeding up installation.
- • **Versatile & Easy to Install:** Flexible sheets cut and fit anywhere—hood, doors, trunk, or engine bay.
- • **Extreme Temperature Resilience:** Operates flawlessly from -40°F to 300°F for year-round protection.

## Overview

The ALLWIN Car Heat Sound Deadening Insulation Mat features a thick 394 mil closed-cell foam with aluminum foil finish, covering 6.5 sqft per sheet. It blocks 98% of radiant heat and reduces engine noise, operating effectively between -40°F and 300°F. Waterproof, odorless, and flexible, it installs easily on multiple vehicle surfaces to enhance comfort and performance.

## 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

Review: Works well, easy to cut, and sticks well - Easy to use, and cut. Not very forgiving of moving once placed, so don't peel till its ready to stick.
Review: quality sound control and insulation - worked great in a 1936 street rod build

## Features

- Sound deadening material size: Nominal thickness 394 mils; Total coverage area of 6.5 sqft; Nominal sheet Size 40x24 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 |
|---------------|-------|
| Brand | ALLWIN |
| Item Thickness | 394 Mils |
| Manufacturer | ALLWIN |
| Material | 394 Mil |
| Product Dimensions | 40"L x 24"W |
| UPC | 616943701562 |

## Product Details

- **Brand:** ALLWIN
- **Item Thickness:** 394 Mils
- **Manufacturer:** ALLWIN
- **Material:** 394 Mil
- **Product Dimensions:** 40"L x 24"W

## Images

![Car Heat Sound Deadening Insulation Mat, - 394 Mil 6.5 Sqft Automobile Sound Deadening & Heat Insulation Material for Auto Hood Engine Roof Door and Trunk,40 Inch x 24 Inch, Aluminum Foil Finish - Image 1](https://m.media-amazon.com/images/I/51AF62GIXkL.jpg)

## Available Options

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

## Questions & Answers

**Q: What’s the difference between 197 and 394? Mil. I see the 394 is higher**
A: The Siless sound deadener thermal shield max is a good 16th of an inch thicker and not as pliable

**Q: How much does it weigh???**
A: Using a digital bathroom scale 1 pound per 11 3/4” X 15 3/8” sheet each

**Q: Is this fire proof as I dont have alot of clearance between engine and cover ?**
A: As I understand, it's not fire proof but it's fire resistant .

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well, easy to cut, and sticks well
*by K***H on August 29, 2025*

Easy to use, and cut. Not very forgiving of moving once placed, so don't peel till its ready to stick.

### ⭐⭐⭐⭐⭐ quality sound control and insulation
*by P***N on October 4, 2025*

worked great in a 1936 street rod build

### ⭐⭐⭐⭐⭐ Stuck and Quiet
*by G***T on September 8, 2025*

Very sticky and easy to cut…..I used 3m adhesive spray just to be sure but really wasn’t necessary. I use it on a Class A RV engine dog house cover. Very happy

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**Shop now:** [https://www.desertcart.fi/products/561954117-car-heat-sound-deadening-insulation-mat-394-mil-6-5](https://www.desertcart.fi/products/561954117-car-heat-sound-deadening-insulation-mat-394-mil-6-5)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-03-09*