---
product_id: 310207941
title: "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"
brand: "siless"
price: "€ 226.03"
currency: EUR
in_stock: true
reviews_count: 7
category: "Siless"
url: https://www.desertcart.com.cy/products/310207941-liner-314-mil-18-sqft-sound-deadening-mat-sound-deadener
store_origin: CY
region: Cyprus
---

# 100% waterproof & oil resistant Blocks 98% radiant heat transfer 314 mil thick closed-cell foam 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

**Brand:** siless
**Price:** € 226.03
**Availability:** ✅ In Stock

## Summary

> 🛠️ Upgrade your ride’s comfort and silence—because your car deserves the best!

## Quick Answers

- **What is this?** 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 by siless
- **How much does it cost?** € 226.03 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.cy](https://www.desertcart.com.cy/products/310207941-liner-314-mil-18-sqft-sound-deadening-mat-sound-deadener)

## 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

- • **Waterproof & Oilproof:** Closed-cell polyethylene foam resists moisture and oil, preventing rust and extending durability.
- • **Premium Thermal Shield:** Siless Liner’s 314 mil thickness delivers industry-leading heat and sound insulation for your vehicle.
- • **Unmatched Heat Blocker:** Effectively blocks 98% of radiant heat, keeping your car cooler in summer and warmer in winter.
- • **Effortless Installation:** Self-adhesive, flexible, and lightweight design makes installation a breeze—no roller needed.
- • **Cost-Effective Excellence:** Get premium sound and thermal insulation at over 3x less cost per sqft than competitors.

## Overview

Siless Liner is a high-density, 314 mil thick closed-cell polyethylene foam mat designed for automotive sound deadening and thermal insulation. It blocks 98% of radiant heat, is fully waterproof and oil resistant, and features a strong self-adhesive backing for easy installation. Covering 18 sqft per roll, it offers premium durability and thermal protection at a fraction of the cost of similar products.

## Description

Siless Liner is a high density, closed cell foam that serves as an efficient heat and sound absorber. Closed-cell foam is an effective material for reducing noise reverberations, and the Siless Liner is moisture-resistant, fire-retardant, and dust-free. Our heat-blocking foam rolls are pliable and easy to work with, and they install in minutes. The high-density closed-cell foam is perfect for firewall, doors, roof, trunk and floor. Siless Liner is the most effective automotive thermal insulator available online, and perfect to use on top of Siless Sound Deadening Mat. It is a soft, self-adhesive closed cell foam with many thousands of cells packed extremely close together, which gives the material near zero air infiltration. This is the key to its ability to reduce heat, as well as resist oil and water. Since it will not hold water, it will not promote rust like most under carpet padding and thermal insulators. Siless Liner is also durable enough to be crush and tear resistant. Because of its durability and ability to resist oil and water, Siless Liner is long lasting. Siless Liner has the highest heat blocking properties available in a single layer synthetic foam. Combined with Siless Sound Deadening Mat, its nearly doubles the total thermal resistance ability. It provides excellent insulation for the roof, firewall, floor, quarter panels, doors, and even under the hood.

Review: لماذا يوجد تاخير في ارجاع الطلبات؟؟؟؟1
Review: Very strong adhesive and excellent quality - It is better at isolating sound than the one I got from a store near me and its thickness is excellent.

## Features

- Closed Cell Foam: OIL and Waterproof LINER closed-cell polyethylene foam is the best for car, Siless with an adhesive layer 100% ensures optimum efficiency and thermal insulation that could be possibly gained. The price of 1 sqft of Siless Liner with similar characteristics is more then three times cheaper! Excellent quality for less money!!
- Heat Blocker and Sound Deadener: Effectively blocks 98% of radiant heat transfer. Siless Liner is a very versatile insulation material with excellent thermal barrier properties that will block engine, exhaust, & summer heat, ensure your vehicle stays cooler in the summer and warmer in the winter, making your ride more pleasant!
- Lightweight, Waterproof: It is a waterproof light-weight thermal deadener with highly compressible closed cell foam formulation, it absolutely doesn’t absorb moisture and has no odor, and it’s flexible which make it easy to install with or without roller.
- The operating temperature of the material is the same as of the rubber foam up to 215 degrees Fahrenheit.
- SILESS Liner specifications: Self-adhesive foam rolls (closed cell PE foam) with waterproof glue. Thickness 314 mil / 0.314 inches / 8mm. Number of rolls in the package - 1. Total coverage area - 18 ft². Each roll size - 15.74 x 165.35 inches.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07LH1X7QX |
| ASIN  | B07LH1X7QX |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #4,490 in Automotive ( See Top 100 in Automotive ) #9 in Automobile Insulation |
| Color | Black |
| Coverage | 18 square feet |
| Customer Reviews | 4.5 4.5 out of 5 stars (3,781) |
| Customer reviews | 4.5 4.5 out of 5 stars (3,781) |
| Date First Available | 1 January 2024 |
| Date First Available  | 1 January 2024 |
| Is Discontinued By Manufacturer  | No |
| Item Package Quantity | 1 |
| Item Weight | 889 g |
| Item model number | SLL31418 |
| Item model number  | SLL31418 |
| Manufacturer | Siless |
| Manufacturer  | Siless |
| Part number | SLL31418 |
| Product Dimensions | 419.99 x 39.98 x 0.1 cm; 889 g |
| Product Dimensions  | 419.99 x 39.98 x 0.1 cm; 889 g |
| Size | 18 sqft |
| Style | 314 mil 18 SqFt |
| UPC | 670875990746 |

## Product Details

- **Brand:** Siless
- **Item thickness:** 0.31 Inches
- **Material:** 314 mil Closed Cell Foam
- **Product dimensions:** 4.2L x 0.4W Meters
- **Recommended uses for product:** Thermal insulation and sound deadening in cars

## Images

![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 - Image 1](https://m.media-amazon.com/images/I/91PKvKKpe2S.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by خ***د on 3 April 2025*

لماذا يوجد تاخير في ارجاع الطلبات؟؟؟؟1

### ⭐⭐⭐⭐⭐ Very strong adhesive and excellent quality
*by M***D on 22 October 2024*

It is better at isolating sound than the one I got from a store near me and its thickness is excellent.

### ⭐⭐⭐⭐⭐ Review
*by D***L on 1 July 2024*

It’s perfect. Exactly what I wanted

## Frequently Bought Together

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*Product available on Desertcart Cyprus*
*Store origin: CY*
*Last updated: 2026-03-05*