--- product_id: 451382218 title: "Car Sound Deadening Mat, 197 Mil 8.7 sqft Sound Deadener" brand: "koikey" price: "¥11645" currency: JPY in_stock: true category: "Koikey" url: https://www.desertcart.jp/products/451382218-car-sound-deadening-mat-197-mil-8-7-sqft-sound store_origin: JP region: Japan --- # 197 mil (5mm) thickness for max dampening Reflects up to 95% radiant heat Peel & stick, easy DIY install Car Sound Deadening Mat, 197 Mil 8.7 sqft Sound Deadener **Brand:** koikey **Price:** ¥11645 **Availability:** ✅ In Stock ## Summary > 🔇 Silence the chaos, amplify your drive. ## Quick Answers - **What is this?** Car Sound Deadening Mat, 197 Mil 8.7 sqft Sound Deadener by koikey - **How much does it cost?** ¥11645 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/451382218-car-sound-deadening-mat-197-mil-8-7-sqft-sound) ## Best For - koikey enthusiasts ## Why This Product - Trusted koikey brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Cut Noise by Half:** Reduces road noise from ~52 dB to ~29 dB for a serene cabin vibe. - • **Built for All Climates:** Durable 4-layer design withstands -40°F to 300°F without fail. - • **Heat-Reflective Shield:** Aluminum foil layer deflects up to 95% of engine and sun heat. - • **Effortless DIY Application:** Strong self-adhesive backing sticks firmly—no roller needed. - • **Precision Coverage Options:** Choose from 8.7 to 38+ sqft to fit any project scale perfectly. ## Overview KOIKEY Car Sound Deadening Mat offers 8.7 sqft of premium 197 mil thick foam with an aluminum foil heat shield, engineered to cut noise by up to 50% and reflect 95% of radiant heat. Its 4-layer waterproof design endures extreme temperatures from -40°F to 300°F, making it ideal for all climates. Easy peel-and-stick installation lets you upgrade your vehicle’s comfort and acoustics effortlessly, perfect for doors, trunks, floors, and more. ## Description desertcart.com: KOIKEY Car Sound Deadening Mat, 197 Mil 8.7 sqft Sound Deadener | Aluminum foil heat shield, Foam material, sound dampening and heat insulation for doors, trunks, floors and vehicle interiors : Cell Phones & Accessories ## Features - Choose the Coverage That Fits Your Project: Includes 8pcs/8.7 sqft total coverage area (each 9.8" × 15.7", 197mil / 5mm thickness)—easy to plan coverage and start small upgrades. Need a different thickness or coverage area? Choose from 4mm / 5mm / 10mm thickness, with coverage options of 1 roll/19 sq ft, 2 roll/38 sq ft, 12pcs/13.1 sq ft, 15pcs/16.3 sq ft, or 34pcs/37.1 sqft—pick the right sound deadening mat for your build. - Quieter Drive, Less Rattle & Vibration:Dense closed-cell foam supports sound deadening by reducing road noise, panel vibration, and interior rattles for a more comfortable ride. Noise levels can drop from ~52 dB to ~29 dB (about 50% lower). It also helps with sound dampening by absorbing both high- and low-frequency noise to keep your cabin quieter. - Heat-Reflective Foil Helps Reduce Heat Soak:Foil facing helps reflect radiant heat from the engine/exhaust and summer sun, supporting car insulation and improving comfort. The aluminum layer can reflect up to 95% radiant heat (lab), helping reduce heat transfer when applied to areas like hood/firewall/roof. - 4-Layer Build for Reliable, All-Weather Use:A foil + foam + PSA adhesive + release liner construction built for real car use. The waterproof foil surface wipes clean easily and resists everyday wear. Working temperature range: -40°F to 300°F. A dependable sound deadening material for cars built for both hot and cold conditions - Peel & Stick Install — Easy to Cut & Apply:Strong PSA self-adhesive backing helps it stay put once pressed firmly in place. Easy to measure, trim, and fit around curves and corners with scissors or a utility knife. Apply this sound deadener to doors, floor, trunk, wheel wells, roof, hood, firewall, cargo area and more. The waterproof adhesive helps provide a lasting hold. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B6181QSK | | Best Sellers Rank | #10,534 in Automotive ( See Top 100 in Automotive ) #19 in Automobile Insulation | | Brand | KOIKEY | | Brand Name | KOIKEY | | Coverage | 8.7 square foot | | Customer Reviews | 4.4 out of 5 stars 1,565 Reviews | | Item Dimensions L x W | 15.7"L x 9.8"W | | Item Highlight | Aluminum foil heat shield, Foam material, sound dampening and heat insulation for doors, trunks, floors and vehicle interiors | | Item Thickness | Aluminum 197 mils | | Manufacturer | KOIKEY | | Manufacturer Part Number | CIP5M8P | | Material | Foam, Aluminum | | Material Type | Foam, Aluminum | | Model Number | sound deadening | | Number of Items | 8 | | Product Dimensions | 15.7"L x 9.8"W | | Recommended Uses For Product | sound insulation, vibration dampening, heat insulation for vehicles | | UPC | 703729826523 703729826530 | | Unit Count | 8 Count | ## Product Details - **Brand:** KOIKEY - **Item Thickness:** Aluminum 197 mils - **Manufacturer:** KOIKEY - **Product Dimensions:** 15.7"L x 9.8"W - **Recommended Uses For Product:** sound insulation, vibration dampening, heat insulation for vehicles ## Images ![Car Sound Deadening Mat, 197 Mil 8.7 sqft Sound Deadener - Image 1](https://m.media-amazon.com/images/I/61mkgv0YToL.jpg) ## Available Options This product comes in different **Item Thickness String, Size** options. ## Frequently Bought Together - Car Sound Deadening Material Mat - 197 mil 8.7 sqft Auto Audio Deadener Foam, Sound Dampening and Heat Insulation for Truck, Vehicle - APIELE 16mm Latching Push Button Switch 12V DC On Off Black Shell with LED Angel Eye Head for 0.63" Mounting Hole with Wire Socket Plug Self-Locking (Blue/Black Shell) - ARRAROWN ZK-1002T 2.0 Channel Bluetooth 5.0 Amplifier Board 200W HiFi Subwoofer Audio AMP with Treble and Bass Control BT and AUX Inputs, DC 12-24V 2.0 Channel Stereo AMP Module for DIY Speakers --- ## 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/451382218-car-sound-deadening-mat-197-mil-8-7-sqft-sound](https://www.desertcart.jp/products/451382218-car-sound-deadening-mat-197-mil-8-7-sqft-sound) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-29*