--- product_id: 664004956 title: "Siless Liner 157 (4 mm) mil 18 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat - PE Foam Sound Deadener Material & Heat Barrier" brand: "siless" price: "€ 107.14" currency: EUR in_stock: true reviews_count: 5 category: "Siless" url: https://www.desertcart.hr/products/664004956-siless-liner-157-4-mm-mil-18-sqft-car-sound store_origin: HR region: Croatia --- # 100% waterproof closed-cell foam Blocks 98% radiant heat Self-adhesive, easy install Siless Liner 157 (4 mm) mil 18 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat - PE Foam Sound Deadener Material & Heat Barrier **Brand:** siless **Price:** € 107.14 **Availability:** ✅ In Stock ## Summary > 🛡️ Upgrade your ride’s comfort with the ultimate heat & sound barrier! ## Quick Answers - **What is this?** Siless Liner 157 (4 mm) mil 18 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat - PE Foam Sound Deadener Material & Heat Barrier by siless - **How much does it cost?** € 107.14 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/664004956-siless-liner-157-4-mm-mil-18-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 - • **Effortless Installation:** Lightweight, flexible, and self-adhesive design means no mess, no fuss—install in minutes with or without tools. - • **Ultimate Thermal Shield:** Siless Liner blocks up to 98% of radiant heat, keeping your ride cool in summer and warm in winter. - • **Waterproof & Oil-Resistant:** Closed-cell polyethylene foam repels moisture and oil, preventing rust and extending durability. - • **Cost-Effective Premium Quality:** Get top-tier insulation performance at over 3x less cost per sqft than competitors—smart savings for savvy pros. - • **Superior Sound & Vibration Deadening:** High-density foam absorbs noise and vibrations, creating a quieter, more serene driving experience. ## Overview Siless Liner 157 is a 4mm thick, closed-cell polyethylene foam mat designed for automotive thermal and sound insulation. It features a self-adhesive backing for easy installation, blocks 98% of radiant heat, and is fully waterproof and oil-resistant. Covering 36 sq ft per roll, it offers premium heat blocking and vibration dampening at a fraction of the cost of comparable products, making it ideal for firewall, doors, roof, trunk, and floor applications. ## 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: Sound damping foam works great. - After the faom was allowed to expand, it both looks and/or works great. I'm using this sound damping foam in my basement art studio. I run multiple air compressors, for airbrushing/painting, as well as sanders, grinding, saws, etc. The sound damping foam works as advertised, more so when you take into account close neighbors don't hear me working on projects at 3am. Review: Land Yacht Approved - 18 square feet was the right amount of insulation to cover the interior roof of my beloved land yacht. Easy to cut and measure. Sticky! ## 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 | |---------------|-------| | ASIN | B0CY12JB8F | | Best Sellers Rank | #2,673 in Automotive ( See Top 100 in Automotive ) #4 in Automobile Insulation | | Brand | Siless | | Brand Name | Siless | | Coverage | 36 square feet | | Customer Reviews | 4.3 out of 5 stars 19 Reviews | | Item Dimensions L x W | 16"L x 10"W | | Item Thickness | 4 Millimeters | | Item Type Name | insulation | | Manufacturer | Bema Group Inc. | | Manufacturer Part Number | SLL36 | | Material | 157mil Closed Cell Foam | | Material Type | 157mil Closed Cell Foam | | Model Number | 157 mil 18 SqFt | | Number of Packs | 1 | | Product Dimensions | 16"L x 10"W | | Recommended Uses For Product | Thermal insulation, sound insulation | | UPC | 659821317431 | | Unit Count | 1.0 Count | ## Product Details - **Material:** 157mil Closed Cell Foam - **Brand:** Siless - **Coverage:** 36 square feet - **Item Thickness:** 4 Millimeters - **Recommended Uses For Product:** Thermal insulation, sound insulation ## Images ![Siless Liner 157 (4 mm) mil 18 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/71sTLv8IudL.jpg) ![Siless Liner 157 (4 mm) mil 18 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/71fEbyqcztL.jpg) ![Siless Liner 157 (4 mm) mil 18 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/7140yX1rLdL.jpg) ![Siless Liner 157 (4 mm) mil 18 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/71aLo2VvdgL.jpg) ![Siless Liner 157 (4 mm) mil 18 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/71kxL5vm9CL.jpg) ## Available Options This product comes in different **Material Type, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Sound damping foam works great. *by V***G on June 2, 2026* After the faom was allowed to expand, it both looks and/or works great. I'm using this sound damping foam in my basement art studio. I run multiple air compressors, for airbrushing/painting, as well as sanders, grinding, saws, etc. The sound damping foam works as advertised, more so when you take into account close neighbors don't hear me working on projects at 3am. ### ⭐⭐⭐⭐⭐ Land Yacht Approved *by A***R on May 30, 2026* 18 square feet was the right amount of insulation to cover the interior roof of my beloved land yacht. Easy to cut and measure. Sticky! ### ⭐⭐⭐⭐⭐ works good *by G***F on April 24, 2025* works good ## Frequently Bought Together - Siless Liner 157 (4 mm) mil 18 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 - Amazon Basics Car Sound Deadener, 14.5″ x 10″, (10 count)Pack of 1 --- ## 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.hr/products/664004956-siless-liner-157-4-mm-mil-18-sqft-car-sound](https://www.desertcart.hr/products/664004956-siless-liner-157-4-mm-mil-18-sqft-car-sound) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-14*