---
product_id: 653324827
title: "Sound Deadening Mat 157mil(4 mm) 55.41sqft - Car Sound Deadening Material Closed Cell Foam - Heat Insulation PE Foam Sound Deadener Material & Heat Barrier"
brand: "aggsound"
price: "VT40597"
currency: VUV
in_stock: true
reviews_count: 13
category: "Agg Sound"
url: https://www.desertcart.vu/products/653324827-sound-deadening-mat-157mil-4-mm-55-41sqft-car-sound
store_origin: VU
region: Vanuatu
---

# Reduces engine & road noise Blocks up to 98% radiant heat 4mm high-density closed-cell foam Sound Deadening Mat 157mil(4 mm) 55.41sqft - Car Sound Deadening Material Closed Cell Foam - Heat Insulation PE Foam Sound Deadener Material & Heat Barrier

**Brand:** aggsound
**Price:** VT40597
**Availability:** ✅ In Stock

## Summary

> 🔇 Drive Quiet, Ride Cool — Upgrade Your Cabin Vibes Now!

## Quick Answers

- **What is this?** Sound Deadening Mat 157mil(4 mm) 55.41sqft - Car Sound Deadening Material Closed Cell Foam - Heat Insulation PE Foam Sound Deadener Material & Heat Barrier by aggsound
- **How much does it cost?** VT40597 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/653324827-sound-deadening-mat-157mil-4-mm-55-41sqft-car-sound)

## Best For

- aggsound enthusiasts

## Why This Product

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

## Key Features

- • **Heat Barrier Mastery:** Stay cool in summer and warm in winter with superior radiant heat blocking technology.
- • **Premium 4mm Foam Shield:** Experience elite sound and heat insulation with dense closed-cell foam that lasts.
- • **Effortless DIY Installation:** Strong adhesive and flexible design make fitting complex vehicle contours a breeze.
- • **Versatile Fit for Every Ride:** Perfect for doors, hoods, trunks, and firewalls—customize your comfort with ease.
- • **Ultimate Noise & Vibration Blocker:** Transform your ride into a serene sanctuary by slashing engine and road noise.

## Overview

AggSound’s 4mm (157mil) Sound Deadening Mat offers 55.41 sqft of premium closed-cell foam engineered to block 98% of radiant heat and drastically reduce engine and road noise. Featuring a durable, heat-resistant adhesive and flexible design, it’s easy to cut and install on multiple vehicle surfaces, delivering a cooler, quieter driving experience year-round.

## Description

Buy AggSound Sound Deadening Mat 157mil(4 mm) 55.41sqft - Car Sound Deadening Material Closed Cell Foam - Heat Insulation PE Foam Sound Deadener Material & Heat Barrier: Insulation - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: 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.
Review: Easy to use and did the job! - This worked perfectly to patch under hood insulation that was shredded by a squirrel. I just needed a small amount and this was a reasonable solution.

## Features

- [Premium 4mm Foam] This 3-layer sound deadener blocks up to 98% of radiant heat and reduces road noise. Featuring 4mm high-density closed-cell foam with strong adhesive, it provides superior thermal insulation for hoods, floors, and doors. Easy to cut and install, it delivers a cooler, quieter ride for cars, trucks, and RVs.
- [Quiet Ride & Vibration Deadener] Effectively reduces engine vibrations and road noise for a quieter cabin even in rainy or humid conditions. Acts as a thermal barrier to keep your vehicle cooler in summer and warmer in winter. Easy to trim and install for a clean, long-lasting look.
- [Durable & Easy Install] Made of high-density closed-cell foam that won't collapse or compress over time. Features heat-resistant, strong adhesive to stick firmly even in summer without falling off. Flexible material is easy to cut, trim, and fit complex contours yourself. The smooth backing peels easily for a clean, long-lasting finish on vehicle surfaces.
- [Wide Application] Features a simple 5-step process: disassemble, clean, cut, paste, and reassemble. This versatile material is engineered to fit tight gaps in car doors, hoods, trunks, and firewalls without interfering with panel closure. Ideal for sound deadening, heat shielding, and shock absorption in key vehicle areas.
- [A variety of different thicknesses to meet different needs] AggSound offers a variety of different thicknesses of insulation foam 4mm/6mm/8mm/10mm/0.25inch/0.5inch/1inch etc. to meet the different needs of the application.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BWD1M9Y5 |
| Best Sellers Rank | #4,411 in Automotive ( See Top 100 in Automotive ) #9 in Automobile Insulation |
| Brand Name | AggSound |
| Coverage | 1.42 square_feet |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,534) |
| 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 Type | 157mil |
| Recommended Uses For Product | automotive soundproofing and heat insulation |
| Unit Count | 55.0 Square Feet |

## Product Details

- **Brand:** AggSound
- **Item Thickness:** 157 Mils
- **Material:** 157mil
- **Product Dimensions:** 15.7"L x 13"W
- **Recommended Uses For Product:** automotive soundproofing and heat insulation

## Images

![Sound Deadening Mat 157mil(4 mm) 55.41sqft - Car Sound Deadening Material Closed Cell Foam - Heat Insulation PE Foam Sound Deadener Material & Heat Barrier - Image 1](https://m.media-amazon.com/images/I/61i0b-LnNdL.jpg)
![Sound Deadening Mat 157mil(4 mm) 55.41sqft - Car Sound Deadening Material Closed Cell Foam - Heat Insulation PE Foam Sound Deadener Material & Heat Barrier - Image 2](https://m.media-amazon.com/images/I/71ZMCDNgiDL.jpg)
![Sound Deadening Mat 157mil(4 mm) 55.41sqft - Car Sound Deadening Material Closed Cell Foam - Heat Insulation PE Foam Sound Deadener Material & Heat Barrier - Image 3](https://m.media-amazon.com/images/I/71VMFIH0L2L.jpg)
![Sound Deadening Mat 157mil(4 mm) 55.41sqft - Car Sound Deadening Material Closed Cell Foam - Heat Insulation PE Foam Sound Deadener Material & Heat Barrier - Image 4](https://m.media-amazon.com/images/I/81vBKngH2YL.jpg)
![Sound Deadening Mat 157mil(4 mm) 55.41sqft - Car Sound Deadening Material Closed Cell Foam - Heat Insulation PE Foam Sound Deadener Material & Heat Barrier - Image 5](https://m.media-amazon.com/images/I/71iY2rO-7LL.jpg)

## Available Options

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

## Questions & Answers

**Q: Does it come with installation instructions? What's the best way to install it for maximum results?**
A: 1.Remove & Clean: Take off interior panels; clean and dry surfaces 2.Cut to Fit: Pre-cut insulation for doors, floor, and roof 3.Apply & Seal: Peel, stick, then seal seams with foil tape (sold separately) 4.Reinstall: Replace all interior components

**Q: What's the difference between Aluminum Foil and Closed-cell Foam?What are the best sound deadening solutions for sound?**
A: 394mil Aluminum Foil excels in heat blocking. 157mil Closed-cell Foam (higher density) is better for soundproofing. For best results: combine 157mil foam with Butyl Sound Deadener (sold separately) to kill vibration and block noise effectively.

**Q: How do I properly install the Butyl + 157mil High-Density Closed-cell Foam combination?**
A: 1. Remove, Clean & Cut. 2. Apply butyl sheets(50–60% coverage is optimal), damping vibration, reducing low-frequency noise. 3. Install foam over butyl. Effectively blocks mid-high frequency noise. 4. Check. This combo ensures optimal noise reduction.

**Q: How do sound deadening materials work to reduce noise? Can it reduce road noise? Can it be used on car doors?**
A: Yes, Closed-cell Foam reduces road noise through:1.Sound absorption (energy to heat conversion) 2.Acoustic impedance reflection 3.Mass law blocking of mid-high frequencies. Its structure effectively reduces road/wind noise transmission into cabin.

**Q: Does it require any special tools for the installation? Is a roller necessary?**
A: Basic tools: gloves, utility knife, measuring tape. A roller (sold separately) is highly recommended to ensure proper adhesion of butyl/foam. Aluminum foil tape is essential for sealing seams. Keeping surfaces clean is crucial for optimal results.

## Customer Reviews

### ⭐⭐⭐⭐⭐ As described, very sticky backing..
*by C***. on January 10, 2026*

Very sticky backing. Once it down ,its down. Good sound barrier, and help the vibration of the gas tank I carry on the truck.

### ⭐⭐⭐⭐⭐ Easy to use and did the job!
*by L***B on February 10, 2026*

This worked perfectly to patch under hood insulation that was shredded by a squirrel. I just needed a small amount and this was a reasonable solution.

### ⭐⭐⭐⭐ Perfect!
*by K***. on January 22, 2026*

Perfect for applying underneath slot car track to deaden sound. Quick delivery!

## Frequently Bought Together

- AggSound 157mil 55sqft Universal Sound Deadener for Cars with Aluminum Foil Tape&Car Trim Removal Tool-Auto Closed Cell Foam Noise Deadening Material-Heat Hood Shield Insulation Dampening Mat
- LUMITECO Bearings Equipped Automotive Car Audio Sound Deadening Application Wheel Roller, Heat Abatement Mat Wallpaper Application PU Smoothing Tool Seam Roller
- Amazon Basics Car Sound Deadener, 18″ x 32″ (9-Piece)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-07*