---
product_id: 530257518
title: "157mil(4 mm) 6sqft Sound Deadening Mat - Closed Cell Foam Car Sound Deadening Material - Self-Adhesive Hood Insulation Heat Shield Auto Sound Dampening"
brand: "aggsound"
price: "9375 Ft"
currency: HUF
in_stock: true
reviews_count: 13
category: "Agg Sound"
url: https://www.desertcart.hu/products/530257518-157mil-4-mm-6sqft-sound-deadening-mat-closed-cell-foam
store_origin: HU
region: Hungary
---

# 98% heat transfer reduction 4mm dense closed-cell foam Self-adhesive, easy 5-step install 157mil(4 mm) 6sqft Sound Deadening Mat - Closed Cell Foam Car Sound Deadening Material - Self-Adhesive Hood Insulation Heat Shield Auto Sound Dampening

**Brand:** aggsound
**Price:** 9375 Ft
**Availability:** ✅ In Stock

## Summary

> 🔇 Silence the noise, feel the difference.

## Quick Answers

- **What is this?** 157mil(4 mm) 6sqft Sound Deadening Mat - Closed Cell Foam Car Sound Deadening Material - Self-Adhesive Hood Insulation Heat Shield Auto Sound Dampening by aggsound
- **How much does it cost?** 9375 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/530257518-157mil-4-mm-6sqft-sound-deadening-mat-closed-cell-foam)

## 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 Transfer Block:** Keep your engine bay cooler and cabin quieter with industry-leading thermal resistance.
- • **Unmatched Adhesion Power:** Aggressive self-adhesive backing guarantees a firm, lasting bond—no slipping or peeling.
- • **Versatile Thickness Options:** Choose from 4mm to 1 inch to tailor soundproofing and heat shielding to your exact needs.
- • **Premium 4mm Closed-Cell Foam:** High-density foam ensures superior sound and heat insulation without compression loss.
- • **Universal Fit for Every Vehicle:** Perfect thickness for doors, hoods, trunks, floors, and firewalls—no gap worries.

## Overview

AggSound’s 157mil (4mm) 6sqft Sound Deadening Mat features a triple-layer design with high-density closed-cell foam, premium adhesive, and easy-peel backing. It reduces heat transfer by 98% and significantly dampens noise and vibration, making it ideal for automotive applications like doors, hoods, and trunks. Engineered for durability and effortless installation, this mat is a top-rated solution for professionals seeking a quieter, cooler ride.

## Description

Buy AggSound 157mil(4 mm) 6sqft Sound Deadening Mat - Closed Cell Foam Car Sound Deadening Material - Self-Adhesive Hood Insulation Heat Shield Auto Sound Dampening: Insulation - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

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.
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.

## Features

- [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.
- [Superior Noise and Heat Insulation] 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.
- [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.
- [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.. Different thicknesses of insulation foam to meet the different needs of the application.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BV2GQMSG |
| Best Sellers Rank | #2,862 in Automotive ( See Top 100 in Automotive ) #6 in Automobile Insulation |
| Brand | AggSound |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,705) |
| Date First Available | February 7, 2023 |
| Item Weight | 8.8 ounces |
| Item model number | YY04PM06 |
| Manufacturer | AggSound |
| Manufacturer Part Number | YY04PM06 |
| Model | 01 |
| Product Dimensions | 12.96 x 66.96 x 0.12 inches |

## Product Details

- **Brand:** AggSound
- **Item Thickness:** 157 Mils
- **Manufacturer:** AggSound
- **Material:** 157mil-Closed Cell Foam
- **Product Dimensions:** 66.9"L x 13"W

## Images

![157mil(4 mm) 6sqft Sound Deadening Mat - Closed Cell Foam Car Sound Deadening Material - Self-Adhesive Hood Insulation Heat Shield Auto Sound Dampening - Image 1](https://m.media-amazon.com/images/I/71dNfvaDNeL.jpg)
![157mil(4 mm) 6sqft Sound Deadening Mat - Closed Cell Foam Car Sound Deadening Material - Self-Adhesive Hood Insulation Heat Shield Auto Sound Dampening - Image 2](https://m.media-amazon.com/images/I/81yV8THCLYL.jpg)
![157mil(4 mm) 6sqft Sound Deadening Mat - Closed Cell Foam Car Sound Deadening Material - Self-Adhesive Hood Insulation Heat Shield Auto Sound Dampening - Image 3](https://m.media-amazon.com/images/I/71fifBIVyJL.jpg)
![157mil(4 mm) 6sqft Sound Deadening Mat - Closed Cell Foam Car Sound Deadening Material - Self-Adhesive Hood Insulation Heat Shield Auto Sound Dampening - Image 4](https://m.media-amazon.com/images/I/71Vn7iWO-BL.jpg)
![157mil(4 mm) 6sqft Sound Deadening Mat - Closed Cell Foam Car Sound Deadening Material - Self-Adhesive Hood Insulation Heat Shield Auto Sound Dampening - Image 5](https://m.media-amazon.com/images/I/71jSDT-rO2L.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

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐ Good, with some things to note...
*by N***L on October 20, 2025*

Works decently enough. A few things to note. It tears quite easily. It sticks to your fingers and will tear if you are not careful when tryin to remove. Once its stuck, its stuck. It will be messy to remove if needed. It looks a little like neoprene as some suggest it is, but it is not. Just a basic low grade closed cell foam. It does the job for sound insulating though!

## Frequently Bought Together

- AggSound 157mil 6sqft Roll Pack Sound Deadener for Cars-Auto Closed Cell Foam Noise Deadening Material-Heat Shield Insulation Dampening Mat
- APIELE 16mm Latching Push Button Switch 12V DC On Off Black Shell with LED Angel Eye Head for 0.63" Mounting Hole with Wire Socket Plug Self-Locking (Blue/Black Shell)
- ARRAROWN ZK-TB21 2.1 Channel Bluetooth 5.0 Amplifier Board 200W HiFi Subwoofer Audio AMP with Treble and Bass Control BT and AUX Inputs, DC 9-24V 2.0 Channel Stereo AMP Module for DIY Speakers

---

## 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.hu/products/530257518-157mil-4-mm-6sqft-sound-deadening-mat-closed-cell-foam](https://www.desertcart.hu/products/530257518-157mil-4-mm-6sqft-sound-deadening-mat-closed-cell-foam)

---

*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-27*