--- title: "sound deadener for cars — Niche Verdict: Launch it (63/100) | Amazon United States - Flapen" canonical_url: "https://flapen.com/amazon/research/us/automotive/sound-deadener-for-cars" last_updated: "2026-07-10T01:52:02.534Z" locale: en meta: description: "sound deadener for cars clears our launch bar: a $2.8M/yr market growing +239.0% with returns at 1.9%." "og:description": "sound deadener for cars clears our launch bar: a $2.8M/yr market growing +239.0% with returns at 1.9%." "og:title": "sound deadener for cars — Niche Verdict: Launch it (63/100) | Amazon United States - Flapen" --- Back to Flapen home # **sound deadener for cars** **Launch it****63/100 ** sound deadener for cars clears our launch bar: a $2.8M/yr market growing +239.0% with returns at 1.9%. **Market/yr** **$2.8M** **Growth (1y)** **+239.0%** **Products** **25** **Brands** **13** was 10 a year ago **Sellers** **18** **Price range** **$9.76–$184.19** **Returns** **1.9%** **Rating** **4.6★** **Launch it** Scored 63/100 across market size, growth, competition, quality gap, and returns. Market sizeGrowthCompetitionQuality gapReturns Market size **53** ×0.30 Growth **81** ×0.30 Competition **60** ×0.20 Quality gap **28** ×0.10 Returns **84** ×0.10 ## **Demand** Weekly Amazon search volume, last 104 weeks — +239.0% year over year. 44K22KPrime Day '25Spike '26Jul '24Nov '24Mar '25Jul '25Nov '25Mar '26 ## **Seasonality** Monthly demand index across the year — 1.00 is average. JFMAMJJASOND No pronounced peak months · busiest ÷ quietest = 1.4× ## **Competition** - KILMAT30% - Siless19% - Amazon Basics15% - CUKWUYBY9% - VOISEN8% - KOIKEY5% - Other (7 brands)14% The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them. 13 brands and 18 sellers compete here. **Brands** **13 **▲rising was 10 a year ago **Sellers** **18** **Top 5 brand share** **81%** #ProductBrandPriceRatingReviewsClick shareTrend 1 ![KILMAT 80 Mil (2 mm) 36 Sqft (3.4 Sqm) Car Sound Deadening Mat Alubutyl Automotive Sound Deadener Audio Noise Insulation and Dampening](https://m.media-amazon.com/images/I/51MULpuwPAL.jpg) [**KILMAT 80 Mil (2 mm) 36 Sqft (3.4 Sqm) Car Sound Deadening Mat Alubutyl Automotive Sound Deadener Audio Noise Insulation and Dampening**](https://www.amazon.com/dp/B0751CBXBT) KILMAT$71.564.8★26,29914%▲rising 2 ![80 mil 10 sqft Car Sound Deadening Mat Butyl Automotive Sound Deadener Audio Noise Insulation and dampening](https://m.media-amazon.com/images/I/51bHU+WIwKL.jpg) [**80 mil 10 sqft Car Sound Deadening Mat Butyl Automotive Sound Deadener Audio Noise Insulation and dampening**](https://www.amazon.com/dp/B0DGZK1W3N) KILMAT$24.074.8★26,29911%▲rising 3 ![Amazon Basics Car Sound Deadening Mat 14.5 x 10 10-Pack Noise and Heat Insulation Self-Adhesive Vibration Dampening](https://m.media-amazon.com/images/I/51CkumuwK4L.jpg) [**Amazon Basics Car Sound Deadening Mat 14.5 x 10 10-Pack Noise and Heat Insulation Self-Adhesive Vibration Dampening**](https://www.amazon.com/dp/B07XMF2V77) Amazon Basics$17.544.7★5,44711%▼falling 4 ![Butyl Sound Deadening 80mil 36sqft Sound Deadening Mat Car Sound Deadening Material Sound Deadening for Cars Automotive Sound Deadening Material Noise Insulation & Vibration Dampening Material (33pcs)](https://m.media-amazon.com/images/I/51qnrDO3X-L.jpg) [**Butyl Sound Deadening 80mil 36sqft Sound Deadening Mat Car Sound Deadening Material Sound Deadening for Cars Automotive Sound Deadening Material Noise Insulation & Vibration Dampening Material (33pcs)**](https://www.amazon.com/dp/B0F1MV7GRF) CUKWUYBY$51.634.6★3667%▲rising 5 ![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)](https://m.media-amazon.com/images/I/51RMt9KPGIL.jpg) [**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)**](https://www.amazon.com/dp/B07BLSP8JV) Siless$70.644.8★5,0477%▼falling 6 ![Siless Liner 157 (4 mm) mil 36 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat - PE Foam Sound Deadener Material & Heat Barrier](https://m.media-amazon.com/images/I/51f+nt1dI5S.jpg) [**Siless Liner 157 (4 mm) mil 36 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat - PE Foam Sound Deadener Material & Heat Barrier**](https://www.amazon.com/dp/B07B75PD8B) Siless$44.914.5★3,4735%▼falling 7 ![Car Sound Deadening Material Mat - 197 mil 8.7 sqft Auto Audio Deadener Foam Sound Dampening and Heat Insulation for Truck Vehicle](https://m.media-amazon.com/images/I/41GigxS5d5L.jpg) [**Car Sound Deadening Material Mat - 197 mil 8.7 sqft Auto Audio Deadener Foam Sound Dampening and Heat Insulation for Truck Vehicle**](https://www.amazon.com/dp/B0B6181QSK) KOIKEY$15.114.4★1,2985%▲rising 8 ![VOISEN Sound Deading Material for Cars 197 mil(5mm) 31 sqft Sound Deadening Aluminum Foil Foam Automotive Soundproofing Material Noise Insulation and Vibration Dampening Material 28 Pcs](https://m.media-amazon.com/images/I/51ODS7MSBZL.jpg) [**VOISEN Sound Deading Material for Cars 197 mil(5mm) 31 sqft Sound Deadening Aluminum Foil Foam Automotive Soundproofing Material Noise Insulation and Vibration Dampening Material 28 Pcs**](https://www.amazon.com/dp/B0FYPLNL99) VOISEN$28.744.3★1415%▲rising 9 ![30 Pcs Sound Deadening Mat 197 mil(5mm) 32 sqft Sound Deading Material for Cars Automotive Sound Deadener Foam Audio Noise Insulation and dampening](https://m.media-amazon.com/images/I/51ZHoviYqPL.jpg) [**30 Pcs Sound Deadening Mat 197 mil(5mm) 32 sqft Sound Deading Material for Cars Automotive Sound Deadener Foam Audio Noise Insulation and dampening**](https://www.amazon.com/dp/B0GQLL9GQP) YesBes$25.824.3★754%▲rising 10 ![KILMAT 50 mil 50 sqft Car Sound Deadening Mat Butyl Automotive Sound Deadener Audio Noise Insulation and dampening](https://m.media-amazon.com/images/I/51QcsaXguBL.jpg) [**KILMAT 50 mil 50 sqft Car Sound Deadening Mat Butyl Automotive Sound Deadener Audio Noise Insulation and dampening**](https://www.amazon.com/dp/B0751G6TMV) KILMAT$69.904.8★26,2994%▲rising 11 ![Amazon Basics Car Sound Deadening Mat 9.8 x 15.7 34-Piece Heat and Noise Insulation Vibration Dampening](https://m.media-amazon.com/images/I/514L4R8+u-L.jpg) [**Amazon Basics Car Sound Deadening Mat 9.8 x 15.7 34-Piece Heat and Noise Insulation Vibration Dampening**](https://www.amazon.com/dp/B07XJ5MVQ8) Amazon Basics$45.874.7★5,4474%—flat 12 ![AggSound Sound Deadening Mat 157mil(4 mm) 6sqft - Car Sound Deadening Material Closed Cell Foam - Heat Insulation PE Foam Sound Deadener Material & Heat Barrier](https://m.media-amazon.com/images/I/51FVqx1dK1L.jpg) [**AggSound Sound Deadening Mat 157mil(4 mm) 6sqft - Car Sound Deadening Material Closed Cell Foam - Heat Insulation PE Foam Sound Deadener Material & Heat Barrier**](https://www.amazon.com/dp/B0BV2GQMSG) AggSound$9.764.4★1,5093%▼falling 13 ![Siless Hybrid 3in1 200 mil 25 sqft Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material](https://m.media-amazon.com/images/I/51Cbc0APtYL.jpg) [**Siless Hybrid 3in1 200 mil 25 sqft Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material**](https://www.amazon.com/dp/B0B6JKF9SC) Siless$78.934.7★7923%▲rising 14 ![Siless 80 mil (2mm) Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material 10 sqft (0.95 sqm)](https://m.media-amazon.com/images/I/516soBS9sYL.jpg) [**Siless 80 mil (2mm) Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material 10 sqft (0.95 sqm)**](https://www.amazon.com/dp/B0BKP6JDWD) Siless$29.974.8★5,0472%▼falling 15 ![VOISEN Sound Deading Material for Cars 157 MIL (4 mm) 36 sqft Sound Deadening Mat Sound Deadening Car Sound Deadening Closed Cell Foam PE Foam Sound Deadener Material & Heat Barrier](https://m.media-amazon.com/images/I/41K0VBEkHWL.jpg) [**VOISEN Sound Deading Material for Cars 157 MIL (4 mm) 36 sqft Sound Deadening Mat Sound Deadening Car Sound Deadening Closed Cell Foam PE Foam Sound Deadener Material & Heat Barrier**](https://www.amazon.com/dp/B0CYNRQWFJ) VOISEN$36.044.6★3812%▼falling **~~Showing 15 of 25 — show all ~~** ## **Product shelf** All 25 tracked products in this niche. Top sellersNewestTrending [![KILMAT 80 Mil (2 mm) 36 Sqft (3.4 Sqm) Car Sound Deadening Mat Alubutyl Automotive Sound Deadener Audio Noise Insulation and Dampening](https://m.media-amazon.com/images/I/51MULpuwPAL.jpg)**KILMAT 80 Mil (2 mm) 36 Sqft (3.4 Sqm) Car Sound Deadening Mat Alubutyl Automotive Sound Deadener Audio Noise Insulation and Dampening** KILMAT**$71.56**4.8★26,299 reviews](https://www.amazon.com/dp/B0751CBXBT) [![80 mil 10 sqft Car Sound Deadening Mat Butyl Automotive Sound Deadener Audio Noise Insulation and dampening](https://m.media-amazon.com/images/I/51bHU+WIwKL.jpg)**80 mil 10 sqft Car Sound Deadening Mat Butyl Automotive Sound Deadener Audio Noise Insulation and dampening** KILMAT**$24.07**4.8★26,299 reviews](https://www.amazon.com/dp/B0DGZK1W3N) [![Amazon Basics Car Sound Deadening Mat 14.5 x 10 10-Pack Noise and Heat Insulation Self-Adhesive Vibration Dampening](https://m.media-amazon.com/images/I/51CkumuwK4L.jpg)**Amazon Basics Car Sound Deadening Mat 14.5 x 10 10-Pack Noise and Heat Insulation Self-Adhesive Vibration Dampening** Amazon Basics**$17.54**4.7★5,447 reviews](https://www.amazon.com/dp/B07XMF2V77) [![Butyl Sound Deadening 80mil 36sqft Sound Deadening Mat Car Sound Deadening Material Sound Deadening for Cars Automotive Sound Deadening Material Noise Insulation & Vibration Dampening Material (33pcs)](https://m.media-amazon.com/images/I/51qnrDO3X-L.jpg)**Butyl Sound Deadening 80mil 36sqft Sound Deadening Mat Car Sound Deadening Material Sound Deadening for Cars Automotive Sound Deadening Material Noise Insulation & Vibration Dampening Material (33pcs)** CUKWUYBY**$51.63**4.6★366 reviews](https://www.amazon.com/dp/B0F1MV7GRF) [![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)](https://m.media-amazon.com/images/I/51RMt9KPGIL.jpg)**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)** Siless**$70.64**4.8★5,047 reviews](https://www.amazon.com/dp/B07BLSP8JV) [![Siless Liner 157 (4 mm) mil 36 sqft Car Sound Deadening Closed Cell Foam & Heat Insulation mat - PE Foam Sound Deadener Material & Heat Barrier](https://m.media-amazon.com/images/I/51f+nt1dI5S.jpg)**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**$44.91**4.5★3,473 reviews](https://www.amazon.com/dp/B07B75PD8B) [![Car Sound Deadening Material Mat - 197 mil 8.7 sqft Auto Audio Deadener Foam Sound Dampening and Heat Insulation for Truck Vehicle](https://m.media-amazon.com/images/I/41GigxS5d5L.jpg)**Car Sound Deadening Material Mat - 197 mil 8.7 sqft Auto Audio Deadener Foam Sound Dampening and Heat Insulation for Truck Vehicle** KOIKEY**$15.11**4.4★1,298 reviews](https://www.amazon.com/dp/B0B6181QSK) [![VOISEN Sound Deading Material for Cars 197 mil(5mm) 31 sqft Sound Deadening Aluminum Foil Foam Automotive Soundproofing Material Noise Insulation and Vibration Dampening Material 28 Pcs](https://m.media-amazon.com/images/I/51ODS7MSBZL.jpg)**VOISEN Sound Deading Material for Cars 197 mil(5mm) 31 sqft Sound Deadening Aluminum Foil Foam Automotive Soundproofing Material Noise Insulation and Vibration Dampening Material 28 Pcs** VOISEN**$28.74**4.3★141 reviews](https://www.amazon.com/dp/B0FYPLNL99) ## **Reviews** What buyers praise and complain about, mined from review topics. ### **What buyers love ** **Quality-Overall**18% *“Affordable quality product”* **Value For Money**13% *“Great value”* **Adhesion/Stickiness**9% *“Adhesive is strong”* **Ease Of Use**9% *“Easy to Apply”* **Assembly/Installation**9% *“installs well”* **Advertised Vs Actual Product**5% *“Works as it should”* **Noise Level**5% *“reduced the noise”* **Audio Quality**5% *“Improved sound quality in the vehicle”* **Efficiency**5% *“A Must Have For Car Restorations”* **Material Quality**2% *“The material itself is thick, feels high quality, and looks great”* ### **What buyers complain about ** **Adhesion/Stickiness**11% *“Weak adhesive”* **Thickness**9% *“The sheets are thick”* **Noise Level**9% *“Truck was so loud”* **Quality-Overall**6% *“Low quality”* **Audio Quality**5% *“Honda CR-V Audio Deadening”* **Advertised Vs Actual Product**3% *“Very misleading pictures and descriptions”* **Smell**2% *“There is a slight tar like smell for a while”* **Assembly/Installation**2% *“I just haven't yet been able to install it”* **Value For Money**2% *“Overrated and overpriced”* **Weight Heavy**2% *“It is kind of heavy”* #### **Top return reasons**- Material Quality15% - Thin11% - Adhesion/Stickiness10% - Size-Overall8% - Advertised Vs Actual Product8% - Audio Quality5% - Value For Money5% - Thickness5% - Assembly/Installation5% - Weight Heavy4%