---
title: "Sound Deadener for Cars — $2.8M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/sound-deadener-for-cars"
last_updated: "2026-08-09T15:18:19.055Z"
locale: en
meta:
description: "Niche score 54/100 · $2.8M/yr market · 1.5M searches/yr · $50.28 avg price. Strong incumbent ratings (4.6★) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 54/100 · $2.8M/yr market · 1.5M searches/yr · $50.28 avg price. Strong incumbent ratings (4.6★) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Sound Deadener for Cars — $2.8M/yr Amazon US Niche (2026) - Flapen"
---
# **sound deadener for cars**
**Worth a look**
Shows a $2.8M/yr market, but strong incumbent ratings (4.6★) keeps it on the watch list.
Market size 96Growth 27Conversion 46Competition 58Returns 76Price range 49Avg price 93Brand share 40Review moat 25Quality gap 24
**Market size**
**Incredible****$2.8M**
$2.8M/yr · 1.5M searches
**Avg price**
**Great****$50.28**
avg listing price — sweet spot $15–$100
**Returns**
**Great****1.9%**
return rate — above 5% kills the launch gate
**Competition**
**Good****50%**
top-5 click share — leaders hold, buyers still browse
**Price range**
**Okay****$9.76–$184.19**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Conversion**
**Okay****3.7%**
search→purchase rate — share of searches ending in a sale
**Brand share**
**Okay****81%**
top-5 brand share — brands hold most of the demand
**Growth**
**Okay****+1.5%**
90-day search growth — must beat 0% to launch
**Review moat**
**Bad****4,420.24**
avg incumbent reviews — the moat a new listing must climb
**Quality gap**
**Bad****4.6★**
avg incumbent rating — lower means beatable quality
**Signals**[** High Price**](https://flapen.com/research/niches?market=us&signal=high_price "Avg price > $50")
According to Flapen's Amazon United States niche tracking, sound deadener for cars is a $2.8M/yr Amazon United States market (1.5M searches/yr). The top 5 brands hold 81% of demand. Verdict: Worth a look — 54/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **sound deadener for cars market data**
- **Units sold / yr**
- **60K–80K**
- avg 3,000–4,000/product
- **Revenue / yr**
- **$3.0M–$4.0M**
- units × avg price
- **Conversion rate**
- **3.7%**
- **Avg BSR**
- **#57**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **96%**
- **Out of stock**
- **4.0%**
- **Avg brand age**
- **44 months**
- **Avg seller age**
- **181 days**
## **Competition & brand share**
The top 5 products take 50% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**13 **▲rising
**Sellers**
**18**
**Top-5 brand share**
**81%**
Top 20: 100%
**Top-5 click share**
**50%**
Top 20: 95%
**Open market**
**14%**
- KILMAT30% - Siless19% - Amazon Basics15% - CUKWUYBY9% - VOISEN8% - KOIKEY5% - Open — no brand owns it (7 brands, 14%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +1.5% search growth over the last 90 days.
40K30KPrime Day '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/automotive/sound-deadener-for-cars/trend)
## **Top sound deadener for cars search terms**
- **sound deadening**711K/yr+6.5%3.1% conv. - **sound deadening mat**157K/yr+10.2%4.0% conv. - **sound deading material for cars**158K/yr-50.2%3.8% conv. - **car sound deadening material**69K/yr-1.4%3.5% conv. - **car sound deadening**49K/yr-6.7%2.6% conv. - **sound deadening for cars**25K/yr+34.9%2.8% conv. - **sound deadener**37K/yr+2.1%2.2% conv. - **sound deadening material**39K/yr-12.5%1.8% conv. - **siless sound deadening**34K/yr-5.9%5.3% conv. - **butyl sound deadening**15K/yr+97.2%3.5% conv. [**All search terms **](https://flapen.com/research/us/automotive/sound-deadener-for-cars/search-terms)
## **Top sound deadener for cars products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%4%$111K8%$222K12%$333K16%$444K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 24 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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 rev](https://www.amazon.com/dp/B0751CBXBT) [2**80 mil 10 sqft Car Sound Deadening Mat Butyl Automotive Sound Deadener Audio Noise Insulation and dampening**KILMAT**$24.07**4.8★26,299 rev](https://www.amazon.com/dp/B0DGZK1W3N) [3**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 rev](https://www.amazon.com/dp/B07XMF2V77) [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)**CUKWUYBY**$51.63**4.6★366 rev](https://www.amazon.com/dp/B0F1MV7GRF) [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)**Siless**$70.64**4.8★5,047 rev](https://www.amazon.com/dp/B07BLSP8JV)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**30 Pcs Sound Deadening Mat 197 mil(5mm) 32 sqft Sound Deading Material for Cars Automotive Sound Deadener Foam Audio Noise Insulation and dampening**YesBes**$25.82**75 rev3mo ago](https://www.amazon.com/dp/B0GQLL9GQP) [**ZARBRE 80 mil Sound Deading Material for Cars 36 sqft Car Sound Deadening Mat Butyl Automotive Sound Deadener Noise Insulation and Vibration Dampening Material Heat Shield & Odorless**ZARBRE**$43.83**66 rev5mo ago](https://www.amazon.com/dp/B0G4C6BXTK) [**Storystore 80mil Car Sound Deadening Mat 36 sqft Butyl Aluminum Automotive Sound Deadener Noise Insulation Vibration Dampening Heat Shield Odorless 33 Pcs**Storystore**$48.62**12 rev7mo ago](https://www.amazon.com/dp/B0G6D9638N) [**Butyl Sound Deadening 36 sqft Sound Deading Material for Cars Powerful Noise Reduction Sound Deadening Mat Automotive Sound Deadener Heat Sound Insulation Mat Soundproofing**CUKWUYBY**$39.59**58 rev7mo ago](https://www.amazon.com/dp/B0G34RNBHD) [**Car Sound Deadening 50 sqft Sound Deadening Mat Sound Deading Material for Cars Butyl Automotive Sound Dampening**RUNSUNSPRI**$57.52**31 rev7mo ago](https://www.amazon.com/dp/B0G1XPM9H6)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**30 Pcs Sound Deadening Mat 197 mil(5mm) 32 sqft Sound Deading Material for Cars Automotive Sound Deadener Foam Audio Noise Insulation and dampening**YesBes**$25.82**4.3★**▲ 280%**](https://www.amazon.com/dp/B0GQLL9GQP) [**ZARBRE 80 mil Sound Deading Material for Cars 36 sqft Car Sound Deadening Mat Butyl Automotive Sound Deadener Noise Insulation and Vibration Dampening Material Heat Shield & Odorless**ZARBRE**$43.83**4.8★**▲ 276%**](https://www.amazon.com/dp/B0G4C6BXTK) [**Storystore 80mil Car Sound Deadening Mat 36 sqft Butyl Aluminum Automotive Sound Deadener Noise Insulation Vibration Dampening Heat Shield Odorless 33 Pcs**Storystore**$48.62**4.8★**▲ 233%**](https://www.amazon.com/dp/B0G6D9638N) [**Butyl Sound Deadening 36 sqft Sound Deading Material for Cars Powerful Noise Reduction Sound Deadening Mat Automotive Sound Deadener Heat Sound Insulation Mat Soundproofing**CUKWUYBY**$39.59**4.4★**▲ 196%**](https://www.amazon.com/dp/B0G34RNBHD) [**Car Sound Deadening 50 sqft Sound Deadening Mat Sound Deading Material for Cars Butyl Automotive Sound Dampening**RUNSUNSPRI**$57.52**4.9★**▲ 147%**](https://www.amazon.com/dp/B0G1XPM9H6)
**~~View all trending →~~**
## **What buyers say about sound deadener for cars**
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 Quality**15%
**Thin**11%
**Adhesion/Stickiness**10%
**Size-Overall**8%
**Advertised Vs Actual Product**8%
**Audio Quality**5%
**Value For Money**5%
**Thickness**5%
**Assembly/Installation**5%
**Weight Heavy**4%
## **Common questions**
- **Is sound deadener for cars profitable to sell on Amazon United States?**
- The niche generates $2.8M/yr across 25 tracked products. 8 of 8 products launched in the last 360 days are still selling. 90-day search growth is +1.5%. Flapen's verdict: Worth a look (54/100).
- **How competitive is the sound deadener for cars niche?**
- 13 brands and 18 sellers compete. The top 5 products take 50% of clicks and top 5 brands hold 81% of demand.
- **What do buyers complain about in sound deadener for cars?**
- Top complaints mined from reviews: Adhesion/Stickiness, Thickness, Noise Level. The return rate is 1.9%.
- **When does demand for sound deadener for cars peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the sound deadener for cars niche?**
- Listings span $9.76–$184.19; the average listing price is $50.28 (sweet spot $15–$100). The average incumbent carries 4,420 reviews — the moat a new listing must climb.
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