---
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: "฿5189"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/521423996-car-heat-sound-deadening-insulation-mat-394-mil-10-8
store_origin: TH
region: Thailand
---

# Covers 10.8 sqft with flexible 40x40 inch sheets 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:** ฿5189
**Availability:** ✅ In Stock

## Summary

> 🚗 Silence the noise, tame the heat — drive in next-level comfort!

## 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?** ฿5189 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/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

- • **Versatile Application:** Perfect for engine bays, doors, trunks, wheel arches, and more
- • **Effortless Installation:** Flexible, lightweight sheets with strong self-adhesive backing for quick DIY fit
- • **Moisture & Odor Resistant:** Waterproof, compressible foam that stays fresh and durable over time
- • **All-Season Comfort Upgrade:** Keeps your ride cooler in summer and warmer in winter effortlessly
- • **Premium Thermal & Acoustic Shield:** 394 mil thick closed-cell foam blocks heat & noise like a pro

## Overview

This 394 mil thick aluminum foil finished sound deadening mat covers 10.8 sqft and blocks 98% of radiant heat, providing superior thermal insulation and noise reduction for vehicles. Lightweight, waterproof, and odorless, it installs easily on multiple car surfaces to enhance driving comfort year-round.

## Description

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

## 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 |
|---------------|-------|
| Manufacturer | ALLWIN |
| UPC | 616943705379 |
| Part Number | AL4040 |
| Item Weight | 15.2 ounces |
| Product Dimensions | 40 x 40 x 0.04 inches |
| Item model number | AL4040 |
| Color | Silver Tone |
| Style | 40 x 40"(10.8sqft) |
| Item Package Quantity | 1 |
| Coverage | 10.8 square foot |
| Included Components | Sound deadening mat |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **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.
- **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

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-01-26*