---
title: "Siless Sound Deadening — $104K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/siless-sound-deadening"
last_updated: "2026-08-07T12:55:19.364Z"
locale: en
meta:
description: "Niche score 34/100 · $104K/yr market · 43K searches/yr · $62.05 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 34/100 · $104K/yr market · 43K searches/yr · $62.05 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Siless Sound Deadening — $104K/yr Amazon US Niche (2026) - Flapen"
---
# **siless sound deadening**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 26Growth 23Conversion 49Competition 11Returns 71Price range 95Avg price 89Brand share 0Review moat 43Quality gap 20
**Price range**
**Incredible****$29.97–$78.93**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Avg price**
**Great****$62.05**
avg listing price — sweet spot $15–$100
**Returns**
**Good****2.2%**
return rate — above 5% kills the launch gate
**Conversion**
**Okay****3.9%**
search→purchase rate — share of searches ending in a sale
**Review moat**
**Okay****2,162.11**
avg incumbent reviews — the moat a new listing must climb
**Market size**
**Okay****$104K**
$104K/yr · 43K searches
**Growth**
**Bad****-3.4%**
90-day search growth — must beat 0% to launch
**Quality gap**
**Bad****4.7★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****87%**
top-5 click share — a locked-up shelf
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
**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, siless sound deadening is a $104K/yr Amazon United States market (43K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 34/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **siless sound deadening market data**
- **Units sold / yr**
- **3K–4K**
- avg 250–500/product
- **Revenue / yr**
- **$186K–$248K**
- units × avg price
- **Conversion rate**
- **3.9%**
- **Avg BSR**
- **#20**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **52 months**
- **Avg seller age**
- **217 days**
## **Competition & brand share**
The top 5 products capture 87% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**1 **—flat
**Sellers**
**6**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**87%**
Top 20: 100%
**Open market**
**0%**
- Siless100% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -3.4% search growth over the last 90 days.
1K750Holiday '24Spike '25 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.4×
[**Open Trend **](https://flapen.com/research/us/automotive/siless-sound-deadening/trend)
## **Top siless sound deadening 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%10%$10K20%$21K30%$31K40%$41K1001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 9 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**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) [2**Siless Hybrid 3in1 200 mil 25 sqft Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material**Siless**$78.93**4.7★792 rev](https://www.amazon.com/dp/B0B6JKF9SC) [3**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 rev](https://www.amazon.com/dp/B07B75PD8B) [4**Siless Max 120 mil (3mm) 30 sqft Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material (30 sqft)**Siless**$74.47**4.8★854 rev](https://www.amazon.com/dp/B09Y5BQYGL) [5**Siless LinerPRO 2in1 200 mil (5mm) 36 sqft Car Sound Deadening & Heat Insulation Closed Cell Foam - PE Foam Sound Deadener**Siless**$74.32**4.6★398 rev](https://www.amazon.com/dp/B09LQQ4KSW)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**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**5,047 rev2y ago](https://www.amazon.com/dp/B07BLSP8JV) [**Siless Liner 157 mil (4 mm) 36 sqft Aluminum Foil Finish Car Sound Deadening & Heat Insulation Closed Cell Foam - PE Foam Sound Deadener**Siless**$45.05**1,395 rev6y ago](https://www.amazon.com/dp/B085642G7M) [**Siless Max 120 mil (3mm) 30 sqft Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material (30 sqft)**Siless**$74.47**854 rev6y ago](https://www.amazon.com/dp/B09Y5BQYGL) [**Siless 80 mil (2mm) Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material 10 sqft (0.95 sqm)**Siless**$29.97**5,047 rev6y ago](https://www.amazon.com/dp/B0BKP6JDWD) [**Siless Hybrid 3in1 200 mil 25 sqft Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material**Siless**$78.93**792 rev6y ago](https://www.amazon.com/dp/B0B6JKF9SC)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Siless LinerPRO 2in1 200 mil (5mm) 36 sqft Car Sound Deadening & Heat Insulation Closed Cell Foam - PE Foam Sound Deadener**Siless**$74.32**4.6★**▲ 60%**](https://www.amazon.com/dp/B09LQQ4KSW) [**Siless 80 mil (2mm) Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material 10 sqft (0.95 sqm)**Siless**$29.97**4.8★**▲ 30%**](https://www.amazon.com/dp/B0BKP6JDWD) [**Siless Hybrid 3in1 200 mil 25 sqft Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material**Siless**$78.93**4.7★**▲ 22%**](https://www.amazon.com/dp/B0B6JKF9SC) [**Siless 50 mil (1.3mm) 52 sqft Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material ( 52 sqft)**Siless**$69.44**4.7★**— 2%**](https://www.amazon.com/dp/B07B75TBCV) [**Siless Black 80 mil (2mm) 36 sqft Car Sound Deadening mat - Butyl Automotive Sound Deadener - Noise Insulation and Vibration Dampening Material (36 sqft)**Siless**$70.74**4.6★**— 1%**](https://www.amazon.com/dp/B07CG2YPRJ)
**~~View all trending →~~**
## **What buyers say about siless sound deadening**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**22%
*“Great quality and easy to apply”*
**Adhesion/Stickiness**13%
*“The adhesive is really good”*
**Value For Money**10%
*“Good value”*
**Assembly/Installation**8%
*“Ease of install”*
**Ease Of Use**7%
*“Easy to use”*
**Material Quality**6%
*“great material I used under the doghouse in my class A rv”*
**Noise Level**6%
*“helped with quieting down the cab”*
**Advertised Vs Actual Product**5%
*“Exactly what I needed”*
**Audio Quality**4%
*“Improved sound quality in the vehicle”*
**Efficiency**4%
*“Worked very good”*
### **What buyers complain about **
**Noise Level**17%
*“Not much noise reduction”*
**Adhesion/Stickiness**10%
*“No adhesion”*
**Thickness**7%
*“This stuff is much more denser than just the regular foam”*
**Flatness**7%
*“flat straight surfaces”*
**Audio Quality**6%
*“unfortunately it barely did anything for sound deadening in my car”*
**Value For Money**4%
*“like everything else out there is getting to expensive to buy to do a full car”*
**Foam**4%
*“Not closed cell foam”*
**Advertised Vs Actual Product**4%
*“doesnt do what it says it will”*
**Assembly/Installation**3%
*“Lots of effort to install. maybe a narrower roller would be better; I used 1 1/2”*
**Smell**2%
*“they're a little smell at first”*
### **Top return reasons **
**Thin**15%
**Adhesion/Stickiness**10%
**Material Quality**9%
**Size-Overall**8%
**Advertised Vs Actual Product**8%
**Thickness**6%
**Compatibility-Overall**6%
**Quality-Overall**5%
**Value For Money**5%
**Weight Heavy**3%
## **Common questions**
- **Is siless sound deadening profitable to sell on Amazon United States?**
- The niche generates $104K/yr across 9 tracked products. 90-day search growth is -3.4%. Flapen's verdict: Skip it (34/100).
- **How competitive is the siless sound deadening niche?**
- 1 brands and 6 sellers compete. The top 5 products take 87% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in siless sound deadening?**
- Top complaints mined from reviews: Noise Level, Adhesion/Stickiness, Thickness. The return rate is 2.2%.
- **When does demand for siless sound deadening peak?**
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- **What does it cost to enter the siless sound deadening niche?**
- Listings span $29.97–$78.93; the average listing price is $62.05 (sweet spot $15–$100). The average incumbent carries 2,162 reviews — the moat a new listing must climb.
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