---
product_id: 377163782
title: "Extra 100 mil (2.5 mm) 25 sqft (2.4 sqm) Car Sound Deadening Mat, Butyl Automotive Sound Deadener, Audio Noise Insulation and dampening"
brand: "kilmat"
price: "€ 269.00"
currency: EUR
in_stock: true
reviews_count: 7
category: "Kilmat"
url: https://www.desertcart.es/products/377163782-extra-100-mil-2-5-mm-25-sqft-2-4
store_origin: ES
region: Spain
---

# 2.5 mm ultra-thick layer 25 sqft coverage in pre-cut sheets Self-adhesive butyl for easy install Extra 100 mil (2.5 mm) 25 sqft (2.4 sqm) Car Sound Deadening Mat, Butyl Automotive Sound Deadener, Audio Noise Insulation and dampening

**Brand:** kilmat
**Price:** € 269.00
**Availability:** ✅ In Stock

## Summary

> 🔇 Silence Never Looked This Sleek

## Quick Answers

- **What is this?** Extra 100 mil (2.5 mm) 25 sqft (2.4 sqm) Car Sound Deadening Mat, Butyl Automotive Sound Deadener, Audio Noise Insulation and dampening by kilmat
- **How much does it cost?** € 269.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/377163782-extra-100-mil-2-5-mm-25-sqft-2-4)

## Best For

- kilmat enthusiasts

## Why This Product

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

## Key Features

- • **Cut, Fit, and Conquer Noise:** Pre-cut 15.9 x 10.3 inch sheets make DIY installation a breeze—upgrade your ride’s comfort in no time.
- • **Precision Installation Guaranteed:** Unique foil embossing ensures a flawless, professional fit every time—no guesswork, just perfect adhesion.
- • **Lightweight Yet Heavyweight Performance:** Weighing only 0.68 lbs/sqft, it’s engineered for maximum soundproofing without adding bulk.
- • **Transform Your Drive & Audio Experience:** Reduce vibrations and road noise to unlock crystal-clear sound from your car stereo—because your ride deserves premium acoustics.
- • **Double the Thickness, Double the Silence:** At 100 mil (2.5 mm), KILMAT delivers twice the damping power of standard mats for next-level noise control.

## Overview

KILMAT Extra 100 mil is the thickest and most effective automotive sound deadening mat in KILMAT’s lineup, featuring a 2.5 mm butyl and foil composite that cuts vibrations and noise dramatically. Covering 25 sqft with lightweight, self-adhesive pre-cut sheets, it ensures easy, professional installation with a unique embossing indicator. Ideal for millennial professionals seeking a quieter, more premium driving experience and enhanced audio clarity.

## Description

KILMAT Extra 100 mil is an innovative high quality sound deadening insulation. KILMAT Extra 100 mil is light weighted and the thickest automotive sound deadener of KILMAT’s product line! Vibro-dampening layer is a composition of butyl and different improvers. These compounds have to be used in correct proportions so maximum soundproofing efficiency is achieved. KILMAT Extra 100 mil (2.5 mm) sound deadening mats feature high level of adhesion! KILMAT is easy to cut, install and it is overall a very user-friendly soundproofing material. KILMAT does really work! These insulation pads eliminate vibrations, reduce overall noise and rattle level of your auto thus allowing for higher comfort. KILMAT Extra 100 mil (2.5 mm) does also improve a quality of your car’s stereo system. However, using KILMAT Extra 100 mil (2.5 mm) as standalone will not be a 100% solution to soundproofing your vehicle while still making a sensible difference. We recommend using KILMAT Extra 100 mil (2.5 mm) in combination with a layer of closed cell foam, which is a special heat and cool insulation material and an additional noise barrier. PLEASE NOTE! Correct installation of material is 50% of success in the process of car soundproofing. Carefully roll down material to the degreased surface with the roller. A special embossing on the foil is made for convenience of installation so you can see the areas that are properly rolled down and those needing more pressure.

Review: Absolutely Incredible. - I purchased 8 boxes, it was enough for the Toyota FJ Cruiser: double layered on the roof, double layered on the rear wheel wells, the entire floor and trunk area, front and rear pillars. all of the doors and suicide doors with double layer in the speaker areas. This stuff has quieted the car down plenty in the and when you knock on the panels from the outside makes the car feel more solid instead od the previous hallow. I changed my speakers and now the car sounds amazing even with the stock subwoofer. In total it took me about 33 hours to DIY this but the material being in pre-cut rectangles helped alot. I would massively reccomend for anyone who has a noisy car. The foam does not work in the desert because of the heat. But I have had zero issues with this even after a week and leaving the car outside in UAE summer.
Review: منتج ذو كفاءة عالية من حيث الفارق قبل التركيب وبعد التركيب تمنياتي لكم بالتقدم الدائم 🤝

## Features

- The cost effective 100 mil (2.5 mm) automotive butyl and foil sound deadening. It is an innovative and the thickest vibration damping material by KILMAT
- Now the material is 2 times thicker than basic materials that will give you 2 times more effective insulation
- The thicker the material the more performance you get
- Automotive self-adhesive insulation consists of butyl. KILMAT sound deadening has a total weight of 0.68 pounds/1 square feet (3.2 kilograms/1 square meter). This weight ensures maximum efficiency and sound insulation that could be possibly gained from 100 mil (2.5 mm) thickness material
- KILMAT 100 mil (2.5 mm) is a light weighted automotive sound deadening material
- Audio insulation KILMAT has a special indicator as to if it is installed correctly
- The special embossing on the foil must be rolled out with a roller till it is plain smooth, then you'll be 100% sure that the insulation is set correctly and professionally
- The sound dampening material comes in handy size sheets which makes it easier in terms of cutting and installation process
- Sound deadening material specifications: Nominal thickness 100 mil (2.5 mm); Total coverage area of 25 square feet (2.4 square meter);
- Number of sheets in the stack 24; Nominal sheet Size 15.9 x 10.3 inch (250x400 mm). Roller is not included.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B092DMQ5NF |
| ASIN  | B092DMQ5NF |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #32,683 in Automotive ( See Top 100 in Automotive ) #74 in Automobile Insulation |
| Color | Silver With Logo Kilmat |
| Coverage | 25 sqft |
| Customer Reviews | 4.7 4.7 out of 5 stars (675) |
| Customer reviews | 4.7 4.7 out of 5 stars (675) |
| Date First Available | 30 August 2021 |
| Date First Available  | 30 August 2021 |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 7.65 Kilograms |
| Item model number | KLMEX25 |
| Item model number  | KLMEX25 |
| Manufacturer | KILMAT |
| Manufacturer  | KILMAT |
| Part number | KLMEX25 |
| Product Dimensions | 40 x 25 x 0.25 cm; 7.65 kg |
| Product Dimensions  | 40 x 25 x 0.25 cm; 7.65 kg |
| Size | 25 sqft (2.4 sqm) |
| Special Features | Thickness 100 mil=2. |
| UPC | 857195006535 |

## Product Details

- **Brand:** KILMAT
- **Item thickness:** 2.5 Millimeters
- **Material:** Aluminum
- **Product dimensions:** 40L x 25W centimeters
- **Recommended uses for product:** automotive soundproofing

## Images

![Extra 100 mil (2.5 mm) 25 sqft (2.4 sqm) Car Sound Deadening Mat, Butyl Automotive Sound Deadener, Audio Noise Insulation and dampening - Image 1](https://m.media-amazon.com/images/I/61GYJIpmVaL.jpg)

## Questions & Answers

**Q: Can this hold up to Arizona heat?**
A: Please note that Kilmat is designed to reduce sound and vibro insulation of metal surfaces. It has some thermal insulation properties but for the less extend. 
Kindly note that Kilmat material has a working temperature from - 49 degrees to 212 degrees F with allowance for only short term heating of up to 392 degrees F.
Let us underline that Kilmat cant be installed in the engine compartment, only under the hood in combination with headliner. 
All of our materials should be installed from the interior (cabin) side of a vehicle
No exterior application allowed!

**Q: Restoring a old car pulled up all the mastic from original but cant get it all  if i cannot get it perfect cleaned up will it still be ok to put down**
A: The idea of the sound deadener is to bond it without voids to the metal. This keeps the metal from vibrating. A little mastic should not be a problem.  Just make sure you press out all the voids.

**Q: Can this go under the hood without melting?**
A: Kilmat 100 mil material is mainly intended to reduce noise, rattles, and vibrations of the metal of a vehicle. And it's not intended for thermal insulation and shouldn't be used as a heat shield.
It has a working temperature from - 49 degrees to 212 degrees F with an allowance for only short-term heating of up to 392 degrees F.
Kilmat 100 mil must not be installed in the engine compartment(except for the underside of the hood).
The temperature under the hood might be really high. For this reason, if the material is being installed under the hood, we normally recommend using Kilmat 100 mil in combination with the hood liner material.
The first layer that goes on a hood metal would be Kilmat 100 mil material
The second layer on top of Kilmat 100 mil would be a hood liner-type material to protect it from excessive heat.
We are sorry, but we do not carry hood liner materials, but one can easily find them on the market.

**Q: Is 100mm good  for a sound system or what size mm do i need?**
A: Works good for me. Can always add more layers to own preference. Honestly any sound deadening better than nothing

## Customer Reviews

### ⭐⭐⭐⭐⭐ Absolutely Incredible.
*by A***Y on 4 July 2024*

I purchased 8 boxes, it was enough for the Toyota FJ Cruiser: double layered on the roof, double layered on the rear wheel wells, the entire floor and trunk area, front and rear pillars. all of the doors and suicide doors with double layer in the speaker areas. This stuff has quieted the car down plenty in the and when you knock on the panels from the outside makes the car feel more solid instead od the previous hallow. I changed my speakers and now the car sounds amazing even with the stock subwoofer. In total it took me about 33 hours to DIY this but the material being in pre-cut rectangles helped alot. I would massively reccomend for anyone who has a noisy car. The foam does not work in the desert because of the heat. But I have had zero issues with this even after a week and leaving the car outside in UAE summer.

### ⭐⭐⭐⭐⭐ Review
*by A***I on 13 October 2023*

منتج ذو كفاءة عالية من حيث الفارق قبل التركيب وبعد التركيب تمنياتي لكم بالتقدم الدائم 🤝

### ⭐⭐⭐⭐⭐ Review
*by A***. on 17 January 2024*

Muy práctico fácil de instalar, fácil de cortar, tiene muy buen peso se aprecia de calidad, el adhesivo pega muy bien ya instalado le da fortaleza y cumple, muy recomendable

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-03-05*