--- product_id: 49469242 title: "Siless Liner 157 mil 51 sqft Aluminum Foil Finish Car Sound Deadening & Heat Insulation Closed Cell Foam - PE Foam Sound Deadener" brand: "siless" price: "$266.21" currency: USD in_stock: true reviews_count: 13 category: "Siless" url: https://www.desertcart.us/products/49469242-siless-liner-157-mil-51-sqft-aluminum-foil-finish-car store_origin: US region: United States of America --- # 51 sqft coverage for full vehicle application Aluminum foil finish blocks heat effectively 157 mil thickness for max insulation Siless Liner 157 mil 51 sqft Aluminum Foil Finish Car Sound Deadening & Heat Insulation Closed Cell Foam - PE Foam Sound Deadener **Brand:** siless **Price:** $266.21 **Availability:** βœ… In Stock ## Summary > πŸ”₯ Silence the noise, block the heat, own the road! πŸ› οΈ ## Quick Answers - **What is this?** Siless Liner 157 mil 51 sqft Aluminum Foil Finish Car Sound Deadening & Heat Insulation Closed Cell Foam - PE Foam Sound Deadener by siless - **How much does it cost?** $266.21 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/49469242-siless-liner-157-mil-51-sqft-aluminum-foil-finish-car) ## 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 - β€’ **Peel & Stick Simplicity:** No adhesives or sprays neededβ€”just trim, peel, place, and roll for a hassle-free, professional install. - β€’ **Massive 51 Sqft Coverage:** Enough material to fully insulate doors, roof, firewall, trunk, and floors for a quieter, cooler ride. - β€’ **Industrial-Grade Thickness:** At 157 mil, this liner delivers superior sound and heat insulation that outperforms typical foam mats. - β€’ **Aluminum Foil Thermal Shield:** Reflects and blocks heat, keeping your vehicle cooler and protecting interior components. - β€’ **Durable & Moisture Resistant:** Closed-cell PE foam resists oil, water, rust, and tearing, ensuring long-lasting performance and protection. ## Overview Siless Liner 157 mil is a premium closed-cell polyethylene foam with an aluminum foil finish, designed for automotive sound deadening and heat insulation. Covering 51 sqft, it offers industrial-grade thickness and moisture resistance, making it ideal for reducing noise and thermal transfer in vehicles. Easy to install with a peel-and-stick backing, this durable liner protects against rust and heat while enhancing cabin comfort and quietness. ## Description Siless Aluminum Foil Finish Liner is a high density, closed cell foam with aluminum finish 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: Very good, heat resistant easy to install - Great product, easy to cut with scissors and install. Very sticky so make sure where you place it, you want to keep it. Well made and has seem to cut down on the transfer of heat I. My vehicle roof. Size is more than enough, well worth the money. Review: Verry sticky - Good product customer service with Siless when I had questions was very good too.Take your time with this product it is very sticky once it touches the surface there is no turning back.Have the right tools and once you make a cut dry fit to make sure it fits.My work van is quieter now and cooler ## Features - Siless 80 mil is all in all high quality sound deadening insulation. Designed as an industrial sound damping material for applications that need extreme performance, it is well suited to the demanding car enthusiast. - Value - Siless Damping Material is priced to be cost effective, when compared to similar products on the market. Car soundproofing does not have to be expensive to work!! - Not Just for car soundproofing - Siless Damping Material was originally created for applications that required extreme damping. This product will quiet any sheet metal application. Also used in the HVAC, heavy equipment and audio industries. - Ease of Installation - Siless Damping Material is easy to install with a peel and place application. Simply trim the pieces to fit, peel and place and hand roll to ensure good adhesion. No messy spray-on paints or adhesives are needed to install this product. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B074QRHY67 | | Best Sellers Rank | #6,961 in Automotive ( See Top 100 in Automotive ) #12 in Automobile Insulation | | Brand | Siless | | Brand Name | Siless | | Coverage | automotive soundproofing | | Customer Reviews | 4.6 out of 5 stars 1,662 Reviews | | Item Dimensions L x W | 11.5"L x 9"W | | Item Thickness | 157 mils | | Manufacturer | Siless | | Manufacturer Part Number | SLS10 | | Material | Polyethylene (PE) | | Material Type | Polyethylene (PE) | | Model Number | 157 mil 51 sqft | | Number of Items | 10 | | Product Dimensions | 11.5"L x 9"W | | Recommended Uses For Product | Car sound deadening and heat insulation | | UPC | 600074979396 | | Unit Count | 51 Square Feet | ## Product Details - **Brand:** Siless - **Item Thickness:** 157 Mils - **Material:** 157mil Closed Cell Foam - **Product Dimensions:** 11.5"L x 9"W - **Recommended Uses For Product:** car soundproofing, HVAC insulation, heavy equipment insulation, and audio industry applications ## Images ![Siless Liner 157 mil 51 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/916PnX4-g2L.jpg) ![Siless Liner 157 mil 51 sqft Aluminum Foil Finish Car Sound Deadening & Heat Insulation Closed Cell Foam - PE Foam Sound Deadener - Image 2](https://m.media-amazon.com/images/I/71ns5PRzqXS.jpg) ![Siless Liner 157 mil 51 sqft Aluminum Foil Finish Car Sound Deadening & Heat Insulation Closed Cell Foam - PE Foam Sound Deadener - Image 3](https://m.media-amazon.com/images/I/71Hs0BWuLLS.jpg) ![Siless Liner 157 mil 51 sqft Aluminum Foil Finish Car Sound Deadening & Heat Insulation Closed Cell Foam - PE Foam Sound Deadener - Image 4](https://m.media-amazon.com/images/I/91S5qBuo-rL.jpg) ![Siless Liner 157 mil 51 sqft Aluminum Foil Finish Car Sound Deadening & Heat Insulation Closed Cell Foam - PE Foam Sound Deadener - Image 5](https://m.media-amazon.com/images/I/81yrG9idSpL.jpg) ## Available Options This product comes in different **Color, Set** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Very good, heat resistant easy to install *by K***N on July 25, 2026* Great product, easy to cut with scissors and install. Very sticky so make sure where you place it, you want to keep it. Well made and has seem to cut down on the transfer of heat I. My vehicle roof. Size is more than enough, well worth the money. ### ⭐⭐⭐⭐⭐ Verry sticky *by A***R on July 19, 2026* Good product customer service with Siless when I had questions was very good too.Take your time with this product it is very sticky once it touches the surface there is no turning back.Have the right tools and once you make a cut dry fit to make sure it fits.My work van is quieter now and cooler ### ⭐⭐⭐⭐⭐ Very nice strong *by V***T on July 31, 2026* Work perfect easy for installation ## Frequently Bought Together - Siless Liner 157 mil (4 mm) 51 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? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/49469242-siless-liner-157-mil-51-sqft-aluminum-foil-finish-car](https://www.desertcart.us/products/49469242-siless-liner-157-mil-51-sqft-aluminum-foil-finish-car) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-09-15*