---
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: "$U20660"
currency: UYU
in_stock: true
url: https://www.desertcart.uy/products/377163782-extra-100-mil-2-5-mm-25-sqft-2-4
store_origin: UY
region: Uruguay
---

# 2.5 mm thick for max damping 25 sqft coverage, easy modular sheets Self-adhesive butyl for hassle-free 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:** $U20660
**Availability:** ✅ In Stock

## Summary

> 🔇 Silence is the new luxury—upgrade your ride with KILMAT Extra!

## 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?** $U20660 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/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

- • **Modular & User-Friendly Sheets:** Comes in 24 manageable sheets (15.9 x 10.3 inches) for easy cutting and fitting—customize your coverage with zero hassle.
- • **Boost Your Car Audio Experience:** Reduces rattles and vibrations, enhancing your stereo clarity and overall driving comfort—because your ride deserves premium sound.
- • **Precision Installation Indicator:** Unique foil embossing guides you to a flawless, professional application every time—no guesswork, just perfect soundproofing.
- • **Lightweight Yet Heavyweight Performance:** Weighing only 0.68 lbs per sqft, it’s engineered for maximum sound insulation without adding bulk or weight to your vehicle.
- • **Double the Thickness, Double the Silence:** At 100 mil (2.5 mm), KILMAT Extra is twice as thick as standard mats, delivering unmatched vibration damping and noise reduction.

## Overview

KILMAT Extra 100 mil is a premium automotive sound deadening mat featuring a thick 2.5 mm butyl and foil composition that delivers superior vibration damping and noise insulation. Covering 25 sqft with lightweight, self-adhesive sheets, it includes a unique foil embossing indicator to ensure perfect installation. Designed to reduce road noise and improve car audio quality, it’s the go-to solution for millennial professionals seeking a quieter, more refined driving experience.

## Description

Extra 100 mil (2.5 mm) 25 sqft (2.4 sqm) Car Sound Deadening Mat, Butyl Automotive Sound Deadener, Audio Noise Insulation and dampening

## 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 |
|---------------|-------|
| Manufacturer | KILMAT |
| UPC | 857195006535 |
| Part number | KLMEX25 |
| Item Weight | 7.65 Kilograms |
| Product Dimensions | 40 x 25 x 0.25 cm; 7.65 kg |
| Item model number | KLMEX25 |
| Size | 25 sqft (2.4 sqm) |
| Color | Silver With Logo Kilmat |
| Item Package Quantity | 1 |
| Coverage | 25 square feet |
| Special Features | Thickness 100 mil=2.5 mm=0.10 inch, aluminium foil with logo KILMAT, application from the interior side of a vehicle, automotive application, butyl based material, indicator of correct installation on the foil, installation on clean and degreased surface, light weighted sound deadening material, self-adhesive, sound deadening, sound proofing, use roller during installation, vibro dampening, wear gloves during installation |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

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

## 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

## Frequently Bought Together

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-01-22*