---
product_id: 477276040
title: "Siless Liner 157 mil (4 mm) 51 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat - PE Foam Sound Deadener Material & Heat Barrier"
brand: "siless"
price: "1027.77 DT"
currency: TND
in_stock: true
reviews_count: 5
category: "Siless"
url: https://www.desertcart.tn/products/477276040-siless-liner-157-mil-4-mm-51-sqft-car-sound
store_origin: TN
region: Tunisia
---

# 51 sq ft total coverage High heat-blocking thermal insulation 4mm thick closed-cell PE foam Siless Liner 157 mil (4 mm) 51 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat - PE Foam Sound Deadener Material & Heat Barrier

**Brand:** siless
**Price:** 1027.77 DT
**Availability:** ✅ In Stock

## Summary

> 🚗 Silence, Shield, and Chill — Upgrade Your Ride’s Comfort Game!

## Quick Answers

- **What is this?** Siless Liner 157 mil (4 mm) 51 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat - PE Foam Sound Deadener Material & Heat Barrier by siless
- **How much does it cost?** 1027.77 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/477276040-siless-liner-157-mil-4-mm-51-sqft-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

- • **Durable & Tear-Resistant:** High-density foam crush and tear resistant for long-lasting performance under harsh conditions.
- • **Moisture & Rust Resistant:** Waterproof, oil-resistant foam that prevents rust and decay, keeping your car’s interior pristine.
- • **Next-Level Thermal Barrier:** Top-tier heat insulation that dramatically reduces cabin heat, perfect for firewall, doors, roof, and trunk.
- • **Ultimate Noise & Vibration Shield:** Closed-cell foam with near zero air infiltration slashes sound reverberations and vibrations for a whisper-quiet ride.
- • **Effortless Peel & Stick Installation:** Self-adhesive backing lets you upgrade your vehicle’s insulation in minutes—no mess, no fuss.

## Overview

Siless Liner is a premium 4mm thick closed-cell polyethylene foam designed for automotive sound deadening and heat insulation. Covering 51 sq ft per pack, it features a strong self-adhesive backing for quick installation. This moisture-resistant, fire-retardant, and durable foam reduces noise, vibration, and heat infiltration, protecting your vehicle from rust and enhancing acoustic performance. Ideal for firewall, doors, roof, trunk, and floor applications, it pairs perfectly with Siless Sound Deadening Mat for superior thermal and sound insulation.

## Description

Siless Liner is a high density, closed cell foam that serves as an efficient heat and vibration 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: Excelente! No sustituye al caucho butilo! - Si buscas reducir la resonancia de la lamina debes usar primero caucho butilo y despues agregarle esta espuma encima para mejores resultados. Cumple perfectamente con su funcion que es aislar y sellar paneles, al sellar puertas mejora la acustica de los altavoces, evita vibraciones y ruidos si se usa como empaque o junta al montarlos, el adhesivo es muy fuerte, se pega excelente y es dificil removerlo, no desprende olor alguno aun con el coche cerrado todo el dia bajo el sol a 38 grados.
Review: Works great - Easy to install. I installed it on top of kilmat on the ceiling of my gmc savanna. The day after I put it on I slept in the van. When I awoke I asked my daughter if it rained last night. She said it was intense rain and wind. I never heard a thing, slept through the whole storm. The combination of these two sound deadening together can’t be beat. Totally recommend.

## Features

- SILESS Liner specifications: Self-adhesive foam sheets (closed cell PE foam) with waterproof glue. Thickness 157 mil / 0.157 inches / 4mm. Number of sheets in the package - 39. Sheet size 15.15x12.44 inches. Total coverage area - 51 ft²

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B095P85BB7 |
| Best Sellers Rank | #17,135 in Automotive ( See Top 100 in Automotive ) #48 in Automobile Insulation |
| Brand | Siless |
| Brand Name | Siless |
| Coverage | 51 sq ft |
| Customer Reviews | 4.4 out of 5 stars 387 Reviews |
| Item Dimensions L x W | 38.5L x 31.6W centimeters |
| Item Thickness | 0.16 Inches |
| Item thickness | 0.16 Inches |
| Manufacturer | Siless |
| Manufacturer Part Number | SLL51 |
| Material | Polyethylene (PE) |
| Material Type | Polyethylene (PE) |
| Model Number | SLL51 |
| Number of Items | 39 |
| Product dimensions | 38.5L x 31.6W centimeters |
| Recommended Uses For Product | automotive insulation and noise reduction |
| Recommended uses for product | automotive insulation and noise reduction |
| UPC | 094308949697 |

## Product Details

- **Brand:** Siless
- **Item thickness:** 0.16 Inches
- **Material:** Polyethylene (PE)
- **Product dimensions:** 38.5L x 31.6W centimeters
- **Recommended uses for product:** automotive insulation and noise reduction

## Images

![Siless Liner 157 mil (4 mm) 51 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat - PE Foam Sound Deadener Material & Heat Barrier - Image 1](https://m.media-amazon.com/images/I/811LRzalbpL.jpg)

## Available Options

This product comes in different **Material Type, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excelente! No sustituye al caucho butilo!
*by J***F on 6 September 2022*

Si buscas reducir la resonancia de la lamina debes usar primero caucho butilo y despues agregarle esta espuma encima para mejores resultados. Cumple perfectamente con su funcion que es aislar y sellar paneles, al sellar puertas mejora la acustica de los altavoces, evita vibraciones y ruidos si se usa como empaque o junta al montarlos, el adhesivo es muy fuerte, se pega excelente y es dificil removerlo, no desprende olor alguno aun con el coche cerrado todo el dia bajo el sol a 38 grados.

### ⭐⭐⭐⭐⭐ Works great
*by J***N on 6 July 2024*

Easy to install. I installed it on top of kilmat on the ceiling of my gmc savanna. The day after I put it on I slept in the van. When I awoke I asked my daughter if it rained last night. She said it was intense rain and wind. I never heard a thing, slept through the whole storm. The combination of these two sound deadening together can’t be beat. Totally recommend.

### ⭐⭐⭐⭐⭐ once stuck they stay stuck!
*by R***G on 21 February 2024*

We are converting a mini van to a weekend camper & used these as 2 layers on the floor for insulation & noise reduction after removing the seats. They stick REALLY well and, since we got the larger order in squares instead of a roll, the pieces were very easy to work with. The biggest trick is to start the peel back, place the square with just an inch or so of sticky exposed then peel as you smooth. Keeps out air bubbles and allows for a minimum of "straightening" if needed. We have enough squares in the box of 51 to do 3 full layers, 2 below the wood flooring and one on top of it when it goes in. It is squishy enough to make for a really nice padding layer under the final flooring (low pile carpet) that we put down.

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-28*