---
product_id: 203177496
title: "Liner 157 mil (4 mm) 36 sqft Aluminum Foil Finish Car Sound Deadening & Heat Insulation Closed Cell Foam - PE Foam Sound Deadener"
brand: "siless"
price: "15423 kr"
currency: ISK
in_stock: true
reviews_count: 13
category: "Siless"
url: https://www.desertcart.is/products/203177496-liner-157-mil-4-mm-36-sqft-aluminum-foil-finish
store_origin: IS
region: Iceland
---

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

**Brand:** siless
**Price:** 15423 kr
**Availability:** ✅ In Stock

## Summary

> 🛠️ Silence the noise, block the heat, and ride in comfort like a pro.

## Quick Answers

- **What is this?** Liner 157 mil (4 mm) 36 sqft Aluminum Foil Finish Car Sound Deadening & Heat Insulation Closed Cell Foam - PE Foam Sound Deadener by siless
- **How much does it cost?** 15423 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/203177496-liner-157-mil-4-mm-36-sqft-aluminum-foil-finish)

## 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

- • **Precision Thickness:** 4mm closed-cell PE foam ensures superior sound deadening and insulation without bulk.
- • **Waterproof & Odorless:** Advanced closed-cell foam repels moisture and stays fresh, no mold or smell.
- • **Ultimate Thermal Shield:** Blocks 98% of radiant heat to keep your ride cool in summer and warm in winter.
- • **Strong Self-Adhesive Backing:** Industrial-grade glue guarantees a permanent, no-slip installation—no peeling, no fuss.
- • **Cost-Effective Premium Quality:** Get top-tier insulation at over 3x less cost per sqft than competitors—upgrade smartly.

## Overview

Siless Liner is a 4mm thick, closed-cell polyethylene foam with an aluminum foil finish designed for automotive sound deadening and heat insulation. Covering 36 sqft per roll, it features a waterproof, odorless, and highly adhesive backing that blocks 98% of radiant heat, making it ideal for maintaining optimal cabin temperature and reducing vibration noise. Trusted by thousands, it offers premium performance at a fraction of the cost.

## Description

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

Review: Easy to use - Very sticky it worked well for me to insulate truck roof.
Review: Siless is the best - Siless products are top notch. This is the first time using this particular product. I’ve always used the 80 mil butyl product. Wanted to use this one for more of an insulator. Does work well. But there were some spots that still sounded hollow, and I went back and put the 80 mil butyl product on top. Works amazing. But I would suggest to use the 80 mil butyl product on real hollow sounding areas first, then use this product to cover the entire area with it. Some of negative reviews, in my opinion, are from improper installation. Once this stuff goes down, you can’t peel it back to adjust it, because the glue is that good. If you do, peel it to adjust, the integrity of the product is ruined. My suggestion, if it’s not lined right, don’t peel it to move it. Just get another piece and cover what you missed. Don’t matter what it like, it’s getting covered with carpet or plastic panels.

## Features

- Closed Cell Foam: OIL and Waterproof AluFoil LINER closed-cell polyethylene foam with aluminum finish 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 ALUMINUM FOIL 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 |
|---------------|-------|
| ASIN | B085642G7M |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #6,993 in Automotive ( See Top 100 in Automotive ) #20 in Automobile Insulation |
| Coverage | 36 square foot |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,588) |
| Date First Available | February 26, 2020 |
| Item Package Quantity | 1 |
| Item Weight | 2.95 pounds |
| Item model number | 157 mil 36 sqft |
| Manufacturer | SILESS |
| Part Number | SLF36 |
| Product Dimensions | 330.7 x 15.74 x 0.04 inches |
| Size | 36 sqft |
| Style | 157 mil 36 SqFt |
| UPC | 753068062380 |

## Product Details

- **Brand:** Siless
- **Item Thickness:** 4 Millimeters
- **Material:** 157mil Closed Cell Foam
- **Product Dimensions:** 330.7"L x 15.74"W
- **Recommended Uses For Product:** Vehicle insulation and soundproofing

## Images

![Liner 157 mil (4 mm) 36 sqft Aluminum Foil Finish Car Sound Deadening & Heat Insulation Closed Cell Foam - PE Foam Sound Deadener - Image 1](https://m.media-amazon.com/images/I/719UO2dKhCL.jpg)

## Questions & Answers

**Q: Roof and floor of truck, do i need to put on top of butyl or will this work by itself?**
A: Thank you for your question.
For floor and roof installation, we always recommend Siless 80 mil first and then Siless Liner 157 mil on the top of it.

**Q: Will this work on the underside of the car as a heat barrier/shield from the exhaust**
A: I think the foam would melt or burn and get too hot if it was real close to the exhaust pipe underneath the car. probably wouldnt stick well to the dirty underside anyway. However, if you apply it on the inside of car body above the exhaust area you will lessen the flow of heat (and noise) into the interior. You can also apply several layers to increase the R value.

**Q: Would this work goodon my van walls**
A: Thank you for your question.

Yes, it will be good for your van walls.

**Q: What is the thickness of the foam?  Could it be cut into a one or two inch strip and wrapped around a 3" tube?  Does it scratch easily?**
A: It is 157 Mil 37.5 Sqft. Yes, you could cut it into one or two inch strips. It has self adhesive side, and you can install it around a 3" tube. It is not easy to scratch it, but everything depends on the environment where you install it.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy to use
*by O***L on December 19, 2025*

Very sticky it worked well for me to insulate truck roof.

### ⭐⭐⭐⭐⭐ Siless is the best
*by A***R on January 10, 2026*

Siless products are top notch. This is the first time using this particular product. I’ve always used the 80 mil butyl product. Wanted to use this one for more of an insulator. Does work well. But there were some spots that still sounded hollow, and I went back and put the 80 mil butyl product on top. Works amazing. But I would suggest to use the 80 mil butyl product on real hollow sounding areas first, then use this product to cover the entire area with it. Some of negative reviews, in my opinion, are from improper installation. Once this stuff goes down, you can’t peel it back to adjust it, because the glue is that good. If you do, peel it to adjust, the integrity of the product is ruined. My suggestion, if it’s not lined right, don’t peel it to move it. Just get another piece and cover what you missed. Don’t matter what it like, it’s getting covered with carpet or plastic panels.

### ⭐⭐⭐⭐⭐ Cut to fit before you stick it.
*by R***. on January 20, 2026*

Good product, but move slowly on install. When it sticks you cannot reposition.

## Frequently Bought Together

- Siless Liner 157 mil (4 mm) 36 sqft Aluminum Foil Finish Car Sound Deadening & Heat Insulation Closed Cell Foam - PE Foam Sound Deadener
- LUMITECO Bearings Equipped Automotive Car Audio Sound Deadening Application Wheel Roller, Heat Abatement Mat Wallpaper Application PU Smoothing Tool Seam Roller
- 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)

---

## 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.is/products/203177496-liner-157-mil-4-mm-36-sqft-aluminum-foil-finish](https://www.desertcart.is/products/203177496-liner-157-mil-4-mm-36-sqft-aluminum-foil-finish)

---

*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-10*