---
product_id: 726632506
title: "Siless Liner 314 Mil 18 Sq Feet Sound Reducing Mat - Sound Reducing Mat - Car Sound Reducer - Sound Reducer - Sound Insulation Material - Car Noise Reducer"
brand: "siless"
price: "R$233"
currency: BRL
in_stock: false
url: https://www.desertcart.com.br/products/726632506-siless-liner-314-mil-18-sq-feet-sound-reducing-mat
store_origin: BR
region: Brazil
---

# Waterproof & moistureproof 0.314 inch thick 98% heat block Siless Liner 314 Mil 18 Sq Feet Sound Reducing Mat - Sound Reducing Mat - Car Sound Reducer - Sound Reducer - Sound Insulation Material - Car Noise Reducer

**Brand:** siless
**Price:** R$233
**Availability:** ❌ Out of Stock

## Summary

> 🔥 Silence the noise, block the heat, and ride in comfort! 🛠️

## Quick Answers

- **What is this?** Siless Liner 314 Mil 18 Sq Feet Sound Reducing Mat - Sound Reducing Mat - Car Sound Reducer - Sound Reducer - Sound Insulation Material - Car Noise Reducer by siless
- **How much does it cost?** R$233 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/726632506-siless-liner-314-mil-18-sq-feet-sound-reducing-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

- • **Durable & Oil Resistant:** Built to last with tear-resistant, oil-proof polyethylene foam for long-term performance.
- • **Effortless Installation:** Self-adhesive backing and lightweight design make setup quick and hassle-free.
- • **Waterproof & Odorless Comfort:** Closed-cell foam resists moisture and odors, ensuring a fresh, dry environment.
- • **Cost-Effective Premium Quality:** High-end insulation at 1/3 the price of comparable products—upgrade without overspending.
- • **Ultimate Heat & Vibration Shield:** Blocks 98% of radiant heat to keep your ride cool in summer and warm in winter.

## Overview

Siless Liner 314 Mil is a premium closed-cell polyethylene foam sound and heat insulation mat designed for automotive use. Measuring 0.314 inches thick and covering 18 sq ft per roll, it features a waterproof, oil-resistant, self-adhesive layer that blocks 98% of radiant heat and reduces vibration and noise. Lightweight and odorless, it installs easily on doors, floors, roofs, and firewalls, delivering durable, cost-effective thermal and acoustic comfort for your vehicle.

## Description

Siless Liner is a dense, closed-cell foam that effectively absorbs heat and vibration. Closed cell foam is an effective material that reduces noise reverberation. The Siless Liner is moisture resistant, fire resistant, and dustproof. Our heat rejection foam rolls are flexible, easy to work and install in minutes. High-density closed cell foam is ideal for firewalls, doors, roofs, trunks, and floors. Siless Liner is the most effective automotive insulation online and is perfect for use on top of Siless Sound Deadening mats. Soft, self-adhesive, closed-cell foam, holds thousands of cells very closely to ensure almost zero air intrusion. It is key to the ability to reduce heat, and it is resistant to oil and water. It will not leak in and will not rust like most carpet pads and insulators. The Siless Liner is durable enough to rip and tear. Its durability and oil resistance make the Siless Liner a long lasting product. Siless Liner has the best heat rejection properties available in a single layer of synthetic foam. Combine with Siless Sound Deadening Mat to almost double the overall thermal resistance. Provides excellent insulation under roofs, firewalls, floors, quarter panels, doors and even hoods.

## Features

- CLOSED CELL FOAM: Oil and water resistant liner clad cell polyethylene foam is perfect for cars, siles with adhesive layer ensures 100% optimal efficiency and insulation, and may be obtained. Price for 1 square foot of the sieless liner with similar properties is 3 times more cheaper! Great quality at an affordable price!
- 【Lightweight & Waterproof】Waterproof and lightweight moistureproof with high compression closed-cell foam, it does not absorb moisture and is odorless, easy to install with or without rollers
- HEAT BLOCKER AND VIBRATION DITE: Effectively blocks 98% of radiant heat transfer. The Siless Liner is an excellent insulation that blocks engine, exhaust and summer heat to keep you cool in the summer and warm in the winter and make your ride more comfortable
- Syless Liner Specifications: A self-adhesive foam roll (closed cell PE foam) with waterproof adhesive. 314 mil / 0.314 inch / 8 mm thick. Number of Rolls in Package - 1 Total Coverage Area - 18 ft2 Each roll size - 15.75" x 18.75"
- Material operating temperature is the same as rubber foam up to 215 degrees

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Bema Group Inc. |
| UPC | 670875990746 |
| Model | 314 mil 18 SqFt |
| Product Dimensions | 419.99 x 39.98 x 0.1 cm; 889 g |
| Item model number | SLL31418 |
| Is Discontinued By Manufacturer | No |
| Position | Front |
| Item Dimensions  L x W x H | 4.2 x 0.4 m |
| Item Weight | 889 g |

## Product Details

- **Material:** 314 mil closed-cell foam
- **Brand:** Siless
- **Item Thickness:** 0.31 Inches
- **Recommended Uses For Product:** Interior insulation and noise reduction
- **Product Dimensions:** 4.2L x 0.4W m

## Images

![Siless Liner 314 Mil 18 Sq Feet Sound Reducing Mat - Sound Reducing Mat - Car Sound Reducer - Sound Reducer - Sound Insulation Material - Car Noise Reducer - Image 1](https://m.media-amazon.com/images/I/91PKvKKpe2S.jpg)
![Siless Liner 314 Mil 18 Sq Feet Sound Reducing Mat - Sound Reducing Mat - Car Sound Reducer - Sound Reducer - Sound Insulation Material - Car Noise Reducer - Image 2](https://m.media-amazon.com/images/I/71ehdTWK7GS.jpg)
![Siless Liner 314 Mil 18 Sq Feet Sound Reducing Mat - Sound Reducing Mat - Car Sound Reducer - Sound Reducer - Sound Insulation Material - Car Noise Reducer - Image 3](https://m.media-amazon.com/images/I/71eKMn57+NS.jpg)
![Siless Liner 314 Mil 18 Sq Feet Sound Reducing Mat - Sound Reducing Mat - Car Sound Reducer - Sound Reducer - Sound Insulation Material - Car Noise Reducer - Image 4](https://m.media-amazon.com/images/I/61BGsDsCVTS.jpg)
![Siless Liner 314 Mil 18 Sq Feet Sound Reducing Mat - Sound Reducing Mat - Car Sound Reducer - Sound Reducer - Sound Insulation Material - Car Noise Reducer - Image 5](https://m.media-amazon.com/images/I/81yrG9idSpL.jpg)

## Frequently Bought Together

- Siless Liner 314 mil 18 sqft Sound Deadening mat - Sound Deadener Mat - Car Sound Dampening Material - Sound dampener - Sound deadening Material Sound Insulation - Car Sound deadening
- Car Sound Deadening Roller Metal Installation Tool 3 Pcs for Auto Noise Roller Car Sound Deadener Application Installation Tool Rolling Wheel Interior Accessories
- Siless 80 mil (2mm) 36 sqft (3.4 sqm) Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material (36 sqft)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-29*