---
product_id: 773711665
title: "Siless Max 120 Mil (3mm) 30 Sq Feet Car Sound Deadening Mat - Butyl Automotive Sound Insulation - Sound Insulation and Vibration Attenuator (30 sq ft)"
brand: "siless"
price: "¥5643012"
currency: JPY
in_stock: false
reviews_count: 5
category: "Siless"
url: https://www.desertcart.jp/products/773711665-siless-max-120-mil-3mm-30-sq-feet-car-sound
store_origin: JP
region: Japan
---

# 3mm thickness for max dampening 30 sq ft coverage per pack Peel & stick easy installation Siless Max 120 Mil (3mm) 30 Sq Feet Car Sound Deadening Mat - Butyl Automotive Sound Insulation - Sound Insulation and Vibration Attenuator (30 sq ft)

**Brand:** siless
**Price:** ¥5643012
**Availability:** ❌ Out of Stock

## Summary

> 🔇 Silence is the new luxury—upgrade your ride, upgrade your vibe!

## Quick Answers

- **What is this?** Siless Max 120 Mil (3mm) 30 Sq Feet Car Sound Deadening Mat - Butyl Automotive Sound Insulation - Sound Insulation and Vibration Attenuator (30 sq ft) by siless
- **How much does it cost?** ¥5643012 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/773711665-siless-max-120-mil-3mm-30-sq-feet-car-sound)

## 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:** 20-30% more effective than competitors for premium soundproofing
- • **Generous 30 Sq Ft Coverage:** Enough material to transform your entire car interior
- • **Cost-Effective Luxury Upgrade:** Achieve Lexus-level quiet without breaking the bank
- • **Industry-Leading 3mm Thickness:** Optimal density for superior vibration and noise reduction
- • **Effortless Peel & Stick Application:** No messy adhesives—install like a pro in minutes

## Overview

Siless Max 120 Mil is a professional-grade automotive sound deadening mat featuring a 3mm thick advanced Bmastic formula. Covering 30 sq ft per pack, it delivers industry-leading noise and vibration reduction with easy peel-and-stick installation. Designed for car enthusiasts seeking a cost-effective upgrade, it significantly enhances sound quality and road noise insulation, turning any vehicle into a quieter, more refined driving experience.

## Description

Sound Deadening is one of the most effective things in the car to improve sound quality and eliminate road noise. SILESS was originally designed for the auto industry and is designed for car soundproofing and soundproofing. Eliminate road noise by reducing or dampening sound vibrations on car metal panels. Whether you are looking to improve the quality of your car stereo or give your car a "luxury car" feel, SILESS is the ideal material. Unlike other companies that use diversion asphalt roofing, SILESS has technically approved Bmastic in the industry. The advanced formula is lightweight, easy to cut, and highly adhesive, 20-30% more effective than any of the competitors on the market. Some companies use technologies and processes that were created over 10 years ago, selling their products three times the price of Siless. SILESS is easy to install and can be applied to any interior surface such as floor, door, roof, hood, trunk lid, etc. The quarter panel easily sticks to other surfaces and stays in place without any special preparation. No dirty dripping or smell. SILESS VIBRO and SILESS LINER are installed together - for more noise blocking rides like SILESS 157mil. The first layer of SILESS VIBRO provides 65% off road noise and vibration, while the second layer of SILESS LINER covers 35% from excessive heat. Together, it is the ultimate solution for your sound dampening needs. Finally a SILESS - the most advanced and industry approved ultimate soundproofing material on the market.

Review: 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.
Review: Awesome product, very easy to install and works really well!

## Features

- ★ Siless MAX VIBRO 120 Mil is the ultimate in quality soundproofing insulation. Designed for the automotive industry, it is designed as an industrial sound insulator for applications that require extreme performance and is suitable for the demanding car enthusiast
- ★ ADVANCED FORMULA - SILESS MAX VIBRO dampening material is made of Bmastic, technically advanced and efficient sound deadening components
- ★ VALUE FOR MONEY-SILESS VIBRO damping material is more cost-effective than similar products on the market. Noiseproof your car does not need to be expensive to work!
- ★ EASY TO INSTALL - SILESS VIBRO damping material is easy to install with a "peel and stick" application. Simply cut, fit, peel, place and roll with hand for a secure bond. No messy spray paints or adhesives needed to install this product
- ★ SILESS VIBRO SPECIFICATIONS - 120 mil / 0.12 inch / 3 mm thickness, Cover area- 30 sq ft., Number of sheets in box - 24, Each sheet size - 15.4 x 11.8 inches Installation instructions are included in the package but not include rollers

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09Y5BQYGL |
| Are Batteries Included | No |
| Customer Reviews | 4.7 4.7 out of 5 stars (669) |
| Date First Available | February 26, 2023 |
| Item Weight | 8.06 Kilograms |
| Manufacturer | Bema Group Inc. |
| Model Number | VAR12030MIL |
| Name List for Name Plates | 30 sq. ft |
| Product Dimensions | 38.99 x 30 x 0.1 cm; 8.06 kg |
| UPC | 094308950297 |

## Product Details

- **Brand:** Siless
- **Item Thickness:** 0.12 Inches
- **Material:** Rubber
- **Product Dimensions:** 39L x 30W cm
- **Recommended Uses For Product:** Sound dampening and dampening of car

## Images

![Siless Max 120 Mil (3mm) 30 Sq Feet Car Sound Deadening Mat - Butyl Automotive Sound Insulation - Sound Insulation and Vibration Attenuator (30 sq ft) - Image 1](https://m.media-amazon.com/images/I/41N4IvEqzAL.jpg)
![Siless Max 120 Mil (3mm) 30 Sq Feet Car Sound Deadening Mat - Butyl Automotive Sound Insulation - Sound Insulation and Vibration Attenuator (30 sq ft) - Image 2](https://m.media-amazon.com/images/I/518j8-XfL-L.jpg)
![Siless Max 120 Mil (3mm) 30 Sq Feet Car Sound Deadening Mat - Butyl Automotive Sound Insulation - Sound Insulation and Vibration Attenuator (30 sq ft) - Image 3](https://m.media-amazon.com/images/I/51FpGqUUWgL.jpg)
![Siless Max 120 Mil (3mm) 30 Sq Feet Car Sound Deadening Mat - Butyl Automotive Sound Insulation - Sound Insulation and Vibration Attenuator (30 sq ft) - Image 4](https://m.media-amazon.com/images/I/51I1VaII0vL.jpg)
![Siless Max 120 Mil (3mm) 30 Sq Feet Car Sound Deadening Mat - Butyl Automotive Sound Insulation - Sound Insulation and Vibration Attenuator (30 sq ft) - Image 5](https://m.media-amazon.com/images/I/51n+qwr8HFL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*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.

### ⭐⭐⭐⭐⭐ Review
*by D***S on November 27, 2025*

Awesome product, very easy to install and works really well!

### ⭐⭐⭐⭐⭐ Review
*by J***Z on February 24, 2025*

Muy buen material, le quitó lo tembloroso a la carrocería de mi auto, también lo aisla del calor y del ruido... Recomiendo ampliamente!

## Frequently Bought Together

- Siless Max 120 mil (3mm) 30 sqft Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material (30 sqft)
- Car Sound Deadening Roller Metal Installation Tool 3 Pcs for Auto Noise Roller Car Sound Deadener Application Installation Tool Rolling Wheel Interior Accessories
- Siless Hybrid 3in1 200 mil 25 sqft Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material

---

## 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.jp/products/773711665-siless-max-120-mil-3mm-30-sq-feet-car-sound](https://www.desertcart.jp/products/773711665-siless-max-120-mil-3mm-30-sq-feet-car-sound)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-08*