--- product_id: 658655818 title: "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: "$666.77" currency: USD in_stock: true reviews_count: 5 url: https://www.desertcart.us/products/658655818-liner-157-mil-4-mm-51-sqft-car-sound-deadening store_origin: US region: United States of America --- # 51 sqft total coverage Highest heat blocking in single-layer foam 4mm thick closed-cell PE foam 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:** $666.77 **Availability:** ✅ In Stock ## Summary > 🔥 Silence the noise, block the heat, and upgrade your ride’s vibe! ## Quick Answers - **What is this?** 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?** $666.77 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/658655818-liner-157-mil-4-mm-51-sqft-car-sound-deadening) ## 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 - • **Noise Ninja:** High-density closed-cell foam slashes vibration and noise reverberations - • **Durability Meets Ease:** Crush and tear resistant yet pliable for quick, hassle-free application - • **Ultimate Thermal Shield:** Blocks heat like a pro, keeping your ride cool and comfy - • **Moisture & Rust Defender:** Waterproof, oil-resistant, and rust-preventing for long-lasting protection - • **Precision Fit & Coverage:** 39 self-adhesive sheets covering 51 sqft for seamless installation ## Overview Siless Liner is a premium 4mm thick closed-cell PE foam designed for automotive sound deadening and heat insulation. Covering 51 sqft with 39 self-adhesive sheets, it offers superior noise reduction, moisture resistance, and fire retardancy. Durable and easy to install, it’s the go-to thermal barrier for doors, floors, roofs, and more—perfect for professionals seeking high-performance insulation that lasts. ## 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. ## 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 | | Brand Name | Siless | | Country Of Publication | USA | | Coverage | 51 square foot | | Customer Reviews | 4.4 4.4 out of 5 stars (381) 4.4 out of 5 stars | | Item Dimensions L X W | 8.4L x 0.4W Meters | | Item Thickness | 0.16 Inches | | Manufacturer | Bema Group Inc. | | Manufacturer Part Number | SLL51 | | Material Type | Foam | | Model Number | SLL51 | | Recommended Uses For Product | Thermal Insulation, Sound Insulation, Moisture Protection | | Unit Count | 39 Count | | Upc | 094308949697 | ## Product Details - **Brand:** Siless - **Item Thickness:** 0.16 Inches - **Material:** Foam - **Product Dimensions:** 8.4L x 0.4W Meters - **Recommended Uses For Product:** Thermal Insulation, Sound Insulation, Moisture Protection ## Images ![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) ![Liner 157 mil (4 mm) 51 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat - PE Foam Sound Deadener Material & Heat Barrier - Image 2](https://m.media-amazon.com/images/I/71ehdTWK7GS.jpg) ![Liner 157 mil (4 mm) 51 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat - PE Foam Sound Deadener Material & Heat Barrier - Image 3](https://m.media-amazon.com/images/I/710VqAUVvkS.jpg) ![Liner 157 mil (4 mm) 51 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat - PE Foam Sound Deadener Material & Heat Barrier - Image 4](https://m.media-amazon.com/images/I/81N60rC1ShL.jpg) ![Liner 157 mil (4 mm) 51 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat - PE Foam Sound Deadener Material & Heat Barrier - Image 5](https://m.media-amazon.com/images/I/81yrG9idSpL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excelente! No sustituye al caucho butilo! *by on Reviewed in Mexico 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 on Reviewed in Canada 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 on Reviewed in the United States 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. ## Frequently Bought Together - Siless Liner 157 mil (4 mm) 51 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat - PE Foam Sound Deadener Material & Heat Barrier - 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.us/products/658655818-liner-157-mil-4-mm-51-sqft-car-sound-deadening](https://www.desertcart.us/products/658655818-liner-157-mil-4-mm-51-sqft-car-sound-deadening) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-29*