---
title: "siless sound deadening — Niche Verdict: Skip it (34/100) | Amazon United States - Flapen"
canonical_url: "https://flapen.com/amazon/research/us/automotive/siless-sound-deadening"
last_updated: "2026-07-14T02:44:38.158Z"
locale: en
meta:
  description: "brand-locked demand (top 5 brands take 100% of clicks) — siless sound deadening doesn't clear our bar today."
  "og:description": "brand-locked demand (top 5 brands take 100% of clicks) — siless sound deadening doesn't clear our bar today."
  "og:title": "siless sound deadening — Niche Verdict: Skip it (34/100) | Amazon United States - Flapen"
---

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# **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 6% 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

## **Competition**

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%**

**Open market**

**0%**

- Siless100% - Open — no brand owns it (0%)

## **Product shelf**

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)](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 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](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**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](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 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)](https://m.media-amazon.com/images/I/51zYHXPgZaL.jpg)**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](https://m.media-amazon.com/images/I/51AZ6M7OKRL.jpg)**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)](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**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](https://m.media-amazon.com/images/I/518rsi5S-1L.jpg)**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)](https://m.media-amazon.com/images/I/51zYHXPgZaL.jpg)**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)](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)**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](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**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](https://m.media-amazon.com/images/I/51AZ6M7OKRL.jpg)**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)](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)**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](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**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)](https://m.media-amazon.com/images/I/518SAc1vhTL.jpg)**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)](https://m.media-amazon.com/images/I/51D8cWQEvqL.jpg)**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 →~~**

## **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×

## **Reviews**

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%