--- 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: "¥18733" currency: JPY in_stock: true reviews_count: 13 category: "Siless" url: https://www.desertcart.jp/products/66730882-siless-liner-157-4-mm-mil-36-sqft-car-sound store_origin: JP region: Japan --- # 4mm thick closed-cell foam 36 sqft coverage 98% heat block 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:** ¥18733 **Availability:** ✅ In Stock ## Summary > 🚗 Silence the noise, block the heat, and upgrade your ride’s vibe! ## 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?** ¥18733 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/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 - • **Transform Your Drive:** Dramatically reduces road noise and vibrations for a quieter, more solid, luxury car feel. - • **Waterproof & Odorless:** Closed-cell PE foam resists oil, moisture, and fuel spills—no soggy mess or lingering smells. - • **Ultimate Thermal Shield:** Blocks 98% of radiant heat to keep your ride cool in summer and warm in winter. - • **Precision Fit & Easy Install:** Flexible, lightweight, and self-adhesive foam that cuts perfectly with no mess or fuss. - • **Cost-Effective Premium Quality:** Get top-tier sound deadening and heat insulation at over 3x less cost per sqft than competitors. ## Overview Siless Liner 157 is a 4mm thick, closed-cell polyethylene foam mat offering 36 sqft of premium car sound deadening and heat insulation. It features a self-adhesive backing for easy installation, blocks 98% of radiant heat, is waterproof and oil-resistant, and provides superior vibration dampening. Perfect for firewall, doors, roof, trunk, and floor insulation, it delivers luxury-level comfort and thermal protection at a fraction of the cost. ## 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: 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.) Review: Excellent Car Sound Deadening and Heat Insulation Solution - If you're looking for a high-quality car sound deadening and heat insulation material, then the Siless Liner 157 (4 mm) mil 36 sqft is definitely worth considering. This product is designed to offer superior noise reduction and heat insulation for your car, making your driving experience more comfortable and enjoyable. The closed-cell foam material used in this product is of premium quality, and it effectively blocks out external noise and vibrations. This means you can enjoy a quieter and more peaceful ride, even on noisy roads. In addition, the Siless Liner 157 also provides excellent heat insulation, which can help keep your car cooler in hot weather. One of the best things about this product is that it's very easy to install. You don't need any special tools or equipment, and the material can be easily cut to fit any shape or size. It's also very lightweight and flexible, which makes it easy to work with. Overall, the Siless Liner 157 (4 mm) mil 36 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat is an excellent choice for anyone looking to improve the comfort and performance of their car. It's a high-quality product that delivers on its promises, and it's definitely worth the investment. ## 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 | B07B75PD8B | | Best Sellers Rank | #2,392 in Automotive ( See Top 100 in Automotive ) #4 in Automobile Insulation | | Brand | Siless | | Brand Name | Siless | | Coverage | 36 square foot | | Customer Reviews | 4.5 out of 5 stars 3,471 Reviews | | Item Dimensions L x W | 330.7"L x 15.74"W | | Item Thickness | 4 Millimeters | | Item Weight | 2.6 Pounds | | Manufacturer | Bema Group Inc. | | Manufacturer Part Number | SLS15736 | | Material | 157mil Closed Cell Foam | | Material Type | 157mil Closed Cell Foam | | Model Number | SLL36 | | Number of Packs | 1 | | 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 | | UPC | 670875990586 | | Unit Count | 1 Count | ## 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 ### ⭐⭐⭐⭐⭐ 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.) ### ⭐⭐⭐⭐⭐ Excellent Car Sound Deadening and Heat Insulation Solution *by M***. on March 12, 2023* If you're looking for a high-quality car sound deadening and heat insulation material, then the Siless Liner 157 (4 mm) mil 36 sqft is definitely worth considering. This product is designed to offer superior noise reduction and heat insulation for your car, making your driving experience more comfortable and enjoyable. The closed-cell foam material used in this product is of premium quality, and it effectively blocks out external noise and vibrations. This means you can enjoy a quieter and more peaceful ride, even on noisy roads. In addition, the Siless Liner 157 also provides excellent heat insulation, which can help keep your car cooler in hot weather. One of the best things about this product is that it's very easy to install. You don't need any special tools or equipment, and the material can be easily cut to fit any shape or size. It's also very lightweight and flexible, which makes it easy to work with. Overall, the Siless Liner 157 (4 mm) mil 36 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat is an excellent choice for anyone looking to improve the comfort and performance of their car. It's a high-quality product that delivers on its promises, and it's definitely worth the investment. ### ⭐⭐⭐⭐ Good value sound deadening material. *by E***B on June 12, 2026* The Siless Liner looks and feels better quality than other cheaper makes of sound deadening materials. I used it as a second layer over vibration dampening aluminum backed butyl sheets Using it under a covered space will prevent it getting scratched. ## 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 - 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) - LUMITECO Bearings Equipped Automotive Car Audio Sound Deadening Application Wheel Roller, Heat Abatement Mat Wallpaper Application PU Smoothing Tool Seam Roller --- ## 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.jp/products/66730882-siless-liner-157-4-mm-mil-36-sqft-car-sound](https://www.desertcart.jp/products/66730882-siless-liner-157-4-mm-mil-36-sqft-car-sound) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-06*