---
product_id: 66730882
title: "Siless Liner 157 (4 mm) mil 36 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat - PE Foam Sound Deadener Material & Heat Barrier"
brand: "siless"
price: "15137 kr"
currency: ISK
in_stock: true
reviews_count: 8
category: "Siless"
url: https://www.desertcart.is/products/66730882-siless-liner-157-4-mm-mil-36-sqft-car-sound
store_origin: IS
region: Iceland
---

# 100% waterproof & odorless 4mm thick closed-cell foam 98% radiant heat blocked Siless Liner 157 (4 mm) mil 36 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat - PE Foam Sound Deadener Material & Heat Barrier

**Brand:** siless
**Price:** 15137 kr
**Availability:** ✅ In Stock

## Summary

> 🚗 Silence, Shield, Save — Transform your drive with Siless Liner!

## Quick Answers

- **What is this?** Siless Liner 157 (4 mm) mil 36 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat - PE Foam Sound Deadener Material & Heat Barrier by siless
- **How much does it cost?** 15137 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/66730882-siless-liner-157-4-mm-mil-36-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

- • **Adhesive Powerhouse:** Strong self-adhesive backing guarantees a secure fit that withstands engine heat up to 215°F.
- • **Waterproof & Odorless:** 100% moisture-resistant with no unpleasant smells, ensuring long-lasting performance.
- • **Ultimate Thermal Shield:** Blocks 98% of radiant heat to keep your ride cool in summer and warm in winter.
- • **Precision-Cut & Flexible:** Easy-to-install 4mm thick closed-cell PE foam adapts perfectly to every car contour.
- • **Cost-Effective Excellence:** Premium sound deadening at over 3x less cost per sqft than competitors—upgrade without the splurge.

## Overview

Siless Liner 157 is a 4mm thick closed-cell polyethylene foam mat designed for superior car sound deadening and heat insulation. Covering 36 sqft per roll, it blocks 98% of radiant heat, is fully waterproof, odorless, and features a strong adhesive backing that withstands temperatures up to 215°F. Offering premium performance at a fraction of the cost, it’s the smart choice for millennial professionals seeking a quieter, more comfortable, and thermally efficient ride.

## Description

Buy Siless Liner 157 (4 mm) mil 36 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat - PE Foam Sound Deadener Material & Heat Barrier: Insulation - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Exactly what i needed! - I recently purchased the Siless Liner 314 mil 18 sqft Sound Deadening mat and I am absolutely thrilled with the results. This product is a game-changer when it comes to reducing noise and improving the overall sound quality in my vehicle. The 314 mil thickness provides excellent sound insulation, effectively blocking out road noise, engine noise, and vibrations. One of the things that really impressed me about the Siless Liner is the price. Compared to other sound deadening products on the market, this one is incredibly affordable. I was a bit skeptical at first because of the low price, but after installing it in my car, I can confidently say that it is worth every penny. The quality of the material is top-notch, and it is easy to work with during the installation process. Not only does the Siless Liner effectively reduce noise, but it also helps to improve the overall sound quality in my vehicle. The sound deadening material creates a more acoustically pleasing environment, allowing me to enjoy my music and conversations without any distractions. I have noticed a significant difference in the clarity and depth of the sound in my car since installing the Siless Liner. Overall, I highly recommend the Siless Liner 314 mil 18 sqft Sound Deadening mat to anyone looking to improve the sound quality in their vehicle. It is a cost-effective solution that delivers exceptional results. Don't let the affordable price tag fool you - this product is a game-changer when it comes to reducing noise and enhancing the overall driving experience.
Review: Bringing a 1976 MG Midget to the modern world! - I've been restoring a 1976 MG Midget barn find. I bought some Sinless liner to help make the car rattle less and feel more solid. This product is easy to cut, easy to install, and extremely sticky. I used it to line the trunk, the interior, and even some under the hood of the old MG. The adhesive stands up to the brutal temperature of the engine bay, and when (by accident) some fuel spilled onto the foam, it didn't fall apart or turn to mush. Thanks to Siless, the MG now feels like a modern car. The floor pans feel much more solid, the doors make a heftier thud when you close them, and the trunk no longer sounds like a percussion instrument when you touch it. If you know what you're doing, this product will transform the feel of a car. I found that 36 sq ft was enough for my MG Midget, but for a bigger car I would want more. The pattern on the back helped me to cut perfectly measured squares and rectangles. The foam itself doesn't have a strong odor, it works super well, and has held up to several months of changing temperatures (in the Midwest US.)

## 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 Vibration 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 157 mil / 0.157 inches / 4mm. Number of rolls in the package - 1. Total coverage area - 36 ft². Each roll size - 15.74 x 330.7 inches.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Siless |
| Item Thickness | 4 Millimeters |
| Manufacturer | Bema Group Inc. |
| Material | 157mil Closed Cell Foam |
| Product Dimensions | 330.7"L x 15.74"W |
| Recommended Uses For Product | Insulating and soundproofing various components of a vehicle, including the firewall, doors, roof, trunk, and floor. Recommended Uses For Product Insulating and soundproofing various components of a vehicle, including the firewall, doors, roof, trunk, and floor. See more |

## Product Details

- **Brand:** Siless
- **Item Thickness:** 4 Millimeters
- **Material:** 157mil Closed Cell Foam
- **Product Dimensions:** 330.7"L x 15.74"W

## Images

![Siless Liner 157 (4 mm) mil 36 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/71hPG3ihjXS.jpg)

## Available Options

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

## Questions & Answers

**Q: Is this better than the aluminum 157mil product?**
A: Use peel and seal which is the butal aluminum kind,  and its way cheaper! Then use this padded deadener on top of that !!

**Q: What is the width of the roll?**
A: Thank you for your question.

The width of Siless Liner is 16 inches.

**Q: Hi i am trying to Insulate my cargo van mercedes sprinter 2022 170 wb extended how many rolls do i need and will this work to control the temperature**
A: You should be able to determine how many rolls you'd need by measuring the interior area you want to cover then comparing it to the roll size (which I believe is in the product description) As for temperature control I don't think this product is thick enough to have an impact on that.

**Q: what kit would be best to do whole inside of my 1964 VW bug?**
A: Hi there! I suggest  buy  36.5 sqft 4 mil enough for VW ,   Just working on 71 super beetle and cover door interiors  ,cargo area( rearfirewall) and roof ! Have fun!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Exactly what i needed!
*by S***N on May 8, 2025*

I recently purchased the Siless Liner 314 mil 18 sqft Sound Deadening mat and I am absolutely thrilled with the results. This product is a game-changer when it comes to reducing noise and improving the overall sound quality in my vehicle. The 314 mil thickness provides excellent sound insulation, effectively blocking out road noise, engine noise, and vibrations. One of the things that really impressed me about the Siless Liner is the price. Compared to other sound deadening products on the market, this one is incredibly affordable. I was a bit skeptical at first because of the low price, but after installing it in my car, I can confidently say that it is worth every penny. The quality of the material is top-notch, and it is easy to work with during the installation process. Not only does the Siless Liner effectively reduce noise, but it also helps to improve the overall sound quality in my vehicle. The sound deadening material creates a more acoustically pleasing environment, allowing me to enjoy my music and conversations without any distractions. I have noticed a significant difference in the clarity and depth of the sound in my car since installing the Siless Liner. Overall, I highly recommend the Siless Liner 314 mil 18 sqft Sound Deadening mat to anyone looking to improve the sound quality in their vehicle. It is a cost-effective solution that delivers exceptional results. Don't let the affordable price tag fool you - this product is a game-changer when it comes to reducing noise and enhancing the overall driving experience.

### ⭐⭐⭐⭐⭐ Bringing a 1976 MG Midget to the modern world!
*by D***. on November 11, 2025*

I've been restoring a 1976 MG Midget barn find. I bought some Sinless liner to help make the car rattle less and feel more solid. This product is easy to cut, easy to install, and extremely sticky. I used it to line the trunk, the interior, and even some under the hood of the old MG. The adhesive stands up to the brutal temperature of the engine bay, and when (by accident) some fuel spilled onto the foam, it didn't fall apart or turn to mush. Thanks to Siless, the MG now feels like a modern car. The floor pans feel much more solid, the doors make a heftier thud when you close them, and the trunk no longer sounds like a percussion instrument when you touch it. If you know what you're doing, this product will transform the feel of a car. I found that 36 sq ft was enough for my MG Midget, but for a bigger car I would want more. The pattern on the back helped me to cut perfectly measured squares and rectangles. The foam itself doesn't have a strong odor, it works super well, and has held up to several months of changing temperatures (in the Midwest US.)

### ⭐⭐⭐⭐ Decent deadener
*by R***R on October 19, 2025*

So, I'm using this in my jeep as the secondary layer on top of the butyl layer. I can definitely tell this will work. Adds mass and the thump test is audibly different. My issue is with sticking. I'm cleaning the metal with dawn and it's very clean. It sticks really well to your hand, but it's hit or miss on the actual sheet metal. I'm using a roller and areas are still unsticking. I recommend buying an adhesive spray to use with this to get the best results. If I did this again, I'd spend more money and buy the soundskins deadener. Premade combination of both materials.

## Frequently Bought Together

- Siless Liner 157 (4 mm) mil 36 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat - PE Foam Sound Deadener Material & Heat Barrier
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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-01-24*