---
product_id: 463695441
title: "Siless Max 120 mil 30 sqft Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material"
brand: "siless"
price: "¥70990"
currency: JPY
in_stock: true
reviews_count: 13
category: "Siless"
url: https://www.desertcart.jp/products/463695441-siless-max-120-mil-30-sqft-car-sound-deadening-mat
store_origin: JP
region: Japan
---

# 120 mil (3mm) thickness for max damping 30 sqft coverage for full car application Peel & place for effortless install Siless Max 120 mil 30 sqft Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material

**Brand:** siless
**Price:** ¥70990
**Availability:** ✅ In Stock

## Summary

> 🔇 Silence is the new luxury—drive in peace, arrive in style.

## Quick Answers

- **What is this?** Siless Max 120 mil 30 sqft Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material by siless
- **How much does it cost?** ¥70990 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/463695441-siless-max-120-mil-30-sqft-car-sound-deadening-mat)

## Best For

- siless enthusiasts

## Why This Product

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

## Key Features

- • **Advanced Bmastic Formula:** Cutting-edge butyl compound engineered for superior sound absorption and durability.
- • **Generous 30 sqft Coverage:** Enough material to silence your entire ride—no patchwork, just pure quiet.
- • **Industrial-Grade Thickness:** At 120 mil, this mat crushes noise and vibration with professional-grade density.
- • **Cost-Effective Soundproofing:** Premium performance without premium price—upgrade your car’s acoustics without breaking the bank.
- • **Effortless Peel & Place Installation:** No adhesives or sprays—just trim, peel, stick, and roll for a flawless fit.

## Overview

Siless Max 120 mil (3mm) 30 sqft Car Sound Deadening Mat is a professional-grade butyl automotive sound insulation designed to drastically reduce noise and vibration. Featuring an advanced Bmastic formula, it offers superior damping performance with easy peel-and-place installation, covering a full 30 square feet to transform your vehicle into a quiet sanctuary—all at a cost-effective price point.

## Description

Buy Siless Max 120 mil 30 sqft Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material: Insulation - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: High quality, super sticky, very effective - As long as the surface is thoroughly cleaned, these mats will stick to just about anything. They provide my car with a tremendous amount of sound dampening and have made riding in the car 10 times more enjoyable. I drive a Toyota Yaris and although the engine is built like it's meant to last forever (imagine that), the rest of the car is not of high quality. Which means we used to get A LOT of noise coming from the road, other cars, etc. After I installed these mats which, by the way, I wasn't able to install on every surface I wanted to install them on (due to lack of tools to be able to disassemble certain parts of the interior), the noise coming from outside the car is nearly completely gone. I covered the underside of my hood, the entire interior part of the hatchback, most of the floor in the trunk / spare tire well, and the entire interior side of the doors. The parts I couldn't get to (or didn't want to) were: the ceiling, underneath the driver & passenger seats, behind the dash and the floor for the 2nd row seating. As you can see I left a lot of surfaces untreated with this product AND STILL it blocks most of the sound. To note: people recommended getting the roller tools to help install these mats. I got a few of them in different sizes and they worked O K. Not because of the quality of the tool but because some places you need to install these mats in don't have enough clearance to use the tool. That being said, for the larger surfaces, the roller tools help a lot. Also I found it very beneficial to use aluminum tape while installing these. The tape I used is specifically designed for materials that undergo high temperature changes (like your dryer vents, etc.). This wasn't because the mats were not sticky enough but because there were some places I installed the mats with small gaps between them. I'd also recommend getting some kind of fluffy insulation-type material for large spaces that need noise dampening. Rock wool, for example, worked great for me. As an example, the interior sides of the 2nd row seating walls had large spaces between the plastic interior cover and the metal part of the car wall. I'd install the mats on the metal but was left with 6" - 7" of space between it and the plastic cover. I chose to fill those spots (and spots like it) with insulation which provided EVEN MORE noise dampening.
Review: Great value in sound deadening. - Used this on both my F-150 and Honda Civic. Did the floor pan, doors and back wall in the F150. It’s nice that it’s 50% thicker than the thin stuff along with the Aluminum coating for some heat dissipation . It was easier to install than just plain butyl rubber in the summer heat, the indents made it easy to see when it was properly set and rolled and easy to cut. Definitely recommend for the price point. Made a huge difference in exhaust noise and the sound system sounds much tighter as well as a result of less vibration and noise intrusion. I used this in combination with the Siless Hybrid to cover both vibration reduction and sound infiltration.

## Features

- ★ Siless MAX VIBRO 120 mil is ultimate quality sound deadening insulation. Designed for the automotive industry as an industrial sound damping material for applications that need extreme performance, it is well suited to the demanding car enthusiast as well.
- ★ Advanced Formulation - SILESS MAX VIBRO Damping Material consists of newly invented Bmastic, technologically most advanced and efficient sound deadening composition on the market today.
- ★ Value - SILESS VIBRO Damping Material is just priced to be cost effective, when compared to similar products on the market. Car soundproofing does not have to be expensive to work!!
- ★ Ease of Installation — SILESS VIBRO Damping Material is easy to install with a “peel and place” application. Simply trim the pieces to fit, peel and place and hand roll to ensure good adhesion. No messy spray-on paints or adhesive1s are needed to install this product.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09Y5BQYGL |
| Best Sellers Rank | #10,005 in Automotive ( See Top 100 in Automotive ) #18 in Automobile Insulation |
| Brand | Siless |
| Brand Name | Siless |
| Coverage | 30 square foot |
| Customer Reviews | 4.8 out of 5 stars 857 Reviews |
| Item Dimensions L x W | 16.53"L x 9.52"W |
| Item Thickness | 120 mils |
| Manufacturer | Bema Group Inc. |
| Manufacturer Part Number | VAR12030MIL |
| Material | Rubber |
| Material Type | Rubber |
| Model Number | VAR12030MIL |
| Number of Items | 1 |
| Product Dimensions | 16.53"L x 9.52"W |
| Recommended Uses For Product | Automotive soundproofing and sound dampening, improving sound quality, and eliminating road noise |
| UPC | 094308950297 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Siless
- **Item Thickness:** 0.12 inches
- **Material:** Rubber
- **Product Dimensions:** 15.35"L x 11.81"W
- **Recommended Uses For Product:** car soundproofing and sound dampening

## Images

![Siless Max 120 mil 30 sqft Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material - Image 1](https://m.media-amazon.com/images/I/81jJifLYjJL.jpg)

## Available Options

This product comes in different **Set** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ High quality, super sticky, very effective
*by T***Y on November 25, 2024*

As long as the surface is thoroughly cleaned, these mats will stick to just about anything. They provide my car with a tremendous amount of sound dampening and have made riding in the car 10 times more enjoyable. I drive a Toyota Yaris and although the engine is built like it's meant to last forever (imagine that), the rest of the car is not of high quality. Which means we used to get A LOT of noise coming from the road, other cars, etc. After I installed these mats which, by the way, I wasn't able to install on every surface I wanted to install them on (due to lack of tools to be able to disassemble certain parts of the interior), the noise coming from outside the car is nearly completely gone. I covered the underside of my hood, the entire interior part of the hatchback, most of the floor in the trunk / spare tire well, and the entire interior side of the doors. The parts I couldn't get to (or didn't want to) were: the ceiling, underneath the driver & passenger seats, behind the dash and the floor for the 2nd row seating. As you can see I left a lot of surfaces untreated with this product AND STILL it blocks most of the sound. To note: people recommended getting the roller tools to help install these mats. I got a few of them in different sizes and they worked O K. Not because of the quality of the tool but because some places you need to install these mats in don't have enough clearance to use the tool. That being said, for the larger surfaces, the roller tools help a lot. Also I found it very beneficial to use aluminum tape while installing these. The tape I used is specifically designed for materials that undergo high temperature changes (like your dryer vents, etc.). This wasn't because the mats were not sticky enough but because there were some places I installed the mats with small gaps between them. I'd also recommend getting some kind of fluffy insulation-type material for large spaces that need noise dampening. Rock wool, for example, worked great for me. As an example, the interior sides of the 2nd row seating walls had large spaces between the plastic interior cover and the metal part of the car wall. I'd install the mats on the metal but was left with 6" - 7" of space between it and the plastic cover. I chose to fill those spots (and spots like it) with insulation which provided EVEN MORE noise dampening.

### ⭐⭐⭐⭐⭐ Great value in sound deadening.
*by S***B on July 17, 2026*

Used this on both my F-150 and Honda Civic. Did the floor pan, doors and back wall in the F150. It’s nice that it’s 50% thicker than the thin stuff along with the Aluminum coating for some heat dissipation . It was easier to install than just plain butyl rubber in the summer heat, the indents made it easy to see when it was properly set and rolled and easy to cut. Definitely recommend for the price point. Made a huge difference in exhaust noise and the sound system sounds much tighter as well as a result of less vibration and noise intrusion. I used this in combination with the Siless Hybrid to cover both vibration reduction and sound infiltration.

### ⭐⭐⭐⭐⭐ Best butyl out there.
*by C***E on August 10, 2025*

If you want the money you're spending on equipment to pay off, you NEED to deaden sound! I've used every major brand and siless is my favorite to work with and the best value for your money, I'm not just adding weight, it's a thermal barrier and reduce outside noise. I turned a 10 year old, base model civic into what feels like a top tier Lexus . Does not offgas, no smell. Super easy to install. Make sure you get a set of rollers! They're required to achieve the advantages of this stuff, it MUST be adhered well and you don't want to tear the interior out twice.

## Frequently Bought Together

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-08-20*