---
product_id: 657505897
title: "Sound Deadening Mat 157mil(4 mm) 107.64sqft - Car Sound Deadening Material Closed Cell Foam - Heat Insulation PE Foam Sound Deadener Material & Heat Barrier"
brand: "aggsound"
price: "$274.93"
currency: USD
in_stock: true
reviews_count: 5
category: "Agg Sound"
url: https://www.desertcart.us/products/657505897-sound-deadening-mat-157mil-4-mm-107-64sqft-car-sound
store_origin: US
region: United States of America
---

# Reduces engine & road noise effectively Blocks up to 98% radiant heat 4mm high-density closed-cell foam Sound Deadening Mat 157mil(4 mm) 107.64sqft - Car Sound Deadening Material Closed Cell Foam - Heat Insulation PE Foam Sound Deadener Material & Heat Barrier

**Brand:** aggsound
**Price:** $274.93
**Availability:** ✅ In Stock

## Summary

> 🔇 Silence the road, feel the difference — upgrade your drive today!

## Quick Answers

- **What is this?** Sound Deadening Mat 157mil(4 mm) 107.64sqft - Car Sound Deadening Material Closed Cell Foam - Heat Insulation PE Foam Sound Deadener Material & Heat Barrier by aggsound
- **How much does it cost?** $274.93 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/657505897-sound-deadening-mat-157mil-4-mm-107-64sqft-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

- • **98% Heat Blocker:** Keep your ride cooler in summer and warmer in winter with industry-leading thermal protection.
- • **Premium 4mm Foam Shield:** Experience superior sound and heat insulation with dense closed-cell foam that lasts.
- • **Vibration & Noise Slayer:** Dramatically reduce engine vibrations and road noise for a peaceful, distraction-free drive.
- • **Effortless DIY Installation:** Peel, cut, and stick with strong adhesive designed for a perfect fit on complex vehicle contours.
- • **Versatile Fit for Every Ride:** Engineered to seamlessly fit doors, hoods, trunks, and firewalls without compromising panel closure.

## Overview

AggSound’s 4mm thick closed-cell foam sound deadening mat covers 107.64 sqft, blocking up to 98% of radiant heat while reducing engine and road noise. Featuring a durable, heat-resistant adhesive and flexible design, it’s easy to install on multiple vehicle surfaces for a cooler, quieter ride year-round.

## Description

[4mm High Quality Closed Cell Foam, Provide Better Sound & Heat Insulation] Our automotive sound deadener is composed of three layers of high quality material, including 4mm high density closed cell foam, high quality back glue and back paper. It provides better noise insulation effect for your car so you can enjoy a more quiet and comfortable environment. At the same time, it effectively reduces 98% heat transfer. [High-quality Material, Meet the Needs of Longer & Better Use] 4mm high quality closed cell foam has a higher anti-extrusion function compared with inferior foam product, so there is no need to worry about the collapse of the use process. Excellent adhesive has strong viscosity, which can ensure to stick firmly. High quality back paper is easy to to peel & install and not easy to tear.[Equipped with High-quality Practical Tools, Ensure Convenient Installation & Insulation Effect][Easy to Install, Wide Application] Aggsound heat shied pad is convenient in installation and operation. Just five steps can be completed: disassemble-clean-cute-paste-reinstallate. 4mm unviersal thickness is more suitable for the car door, hood, trunk, floor, firewall and other parts of the vehicle. You do not have to worry about the phenomenon of not being able to install because the thickness is too large but the vehicle gap is not enough.

Review: Do exactly as they say it does - Mada my generator box very quiet will be great when camping
Review: Works good - Material was really easy to work with. Used it to apply sound insulation under the cowling of my outboard engine. Definitely quieted it down to a more tolerable level. Would used this stuff on everything.

## 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 | B0BX3MN7TC |
| Best Sellers Rank | 572,017 in Automotive ( See Top 100 in Automotive ) 947 in Automobile Insulation |
| Brand | AggSound |
| Country of Origin | China |
| Coverage | 107 square_feet |
| Customer Reviews | 4.4 out of 5 stars 79 Reviews |
| Included Components | car sound insulation |
| Item Dimensions L x W | 100.1L x 100.8W centimetres |
| Item Thickness | 157 Mils |
| Item Type Name | car sound insulation |
| Item thickness | 157 Mils |
| Manufacturer | AggSound |
| Material | Closed Cell Foam |
| Model Number | YY04PM0107 |
| Number of items | 1 |
| Part Number | YY04PM0107 |
| Product dimensions | 100.1L x 100.8W centimetres |
| Unit Count | 9.9406 square meter |

## Product Details

- **Material:** Closed Cell Foam
- **Brand:** AggSound
- **Item thickness:** 157 Mils
- **Product dimensions:** 100.1L x 100.8W centimetres
- **Manufacturer:** AggSound

## Images

![Sound Deadening Mat 157mil(4 mm) 107.64sqft - 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/71dNfvaDNeL.jpg)
![Sound Deadening Mat 157mil(4 mm) 107.64sqft - 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/71hdOZr78gL.jpg)
![Sound Deadening Mat 157mil(4 mm) 107.64sqft - 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/71yYLf40PPL.jpg)
![Sound Deadening Mat 157mil(4 mm) 107.64sqft - 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/71KiNvdkvyL.jpg)
![Sound Deadening Mat 157mil(4 mm) 107.64sqft - 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/61PpFccOVzL.jpg)

## 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

### ⭐⭐⭐⭐⭐ Do exactly as they say it does
*by G***G on 16 March 2026*

Mada my generator box very quiet will be great when camping

### ⭐⭐⭐⭐⭐ Works good
*by L***N on 24 June 2025*

Material was really easy to work with. Used it to apply sound insulation under the cowling of my outboard engine. Definitely quieted it down to a more tolerable level. Would used this stuff on everything.

### ⭐⭐⭐⭐⭐ Good quality
*by H***R on 1 January 2025*

Works as it should. Get it right. It will not come off once it sticks

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-16*