---
title: "Sound Deadening Spray Foam — $124K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/automotive/sound-deadening-spray-foam"
last_updated: "2026-08-09T11:54:34.340Z"
locale: en
meta:
description: "Niche score 39/100 · $124K/yr market · 42K searches/yr · $54.08 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 39/100 · $124K/yr market · 42K searches/yr · $54.08 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Sound Deadening Spray Foam — $124K/yr Amazon US Niche (2026) - Flapen"
---
# **sound deadening spray foam**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 28Growth 23Conversion 62Competition 22Returns 93Price range 53Avg price 92Brand share 0Review moat 25Quality gap 43
**Returns**
**Great****1.1%**
return rate — above 5% kills the launch gate
**Avg price**
**Great****$54.08**
avg listing price — sweet spot $15–$100
**Conversion**
**Good****5.4%**
search→purchase rate — share of searches ending in a sale
**Price range**
**Good****$8.98–$169.59**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Market size**
**Okay****$124K**
$124K/yr · 42K searches
**Review moat**
**Bad****4,612.5**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-4.5%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****74%**
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, sound deadening spray foam is a $124K/yr Amazon United States market (42K searches/yr). The top 5 brands hold 100% of demand. Verdict: Skip it — 39/100.
Data updated Jul 9, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **sound deadening spray foam market data**
- **Units sold / yr**
- **2K–2K**
- avg 0–100/product
- **Revenue / yr**
- **$81K–$108K**
- units × avg price
- **Conversion rate**
- **5.4%**
- **Avg BSR**
- **#213**
- **Page quality**
- **0%**
- **Prime**
- **93%**
- **Sponsored**
- **29%**
- **Out of stock**
- **0.9%**
- **Avg brand age**
- **56 months**
- **Avg seller age**
- **197 days**
## **Competition & brand share**
The top 5 products capture 74% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**4 **▼falling
**Sellers**
**75**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**74%**
Top 20: 100%
**Open market**
**0%**
- Design Engineering86% - KILMAT7% - Rust-Oleum5% - Magic Chems2%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -4.5% search growth over the last 90 days.
1K600Spike '24Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/automotive/sound-deadening-spray-foam/trend)
## **Top sound deadening spray foam search terms**
- **boom mat**17K/yr-2.0%2.1% conv. - **sound deadening spray**11K/yr-7.1%3.1% conv. - **boom mat sound deadening**6K/yr-2.9%3.6% conv. - **sound deadening foam spray**3K/yr+0.5%0.3% conv. - **boom mat spray**3K/yr-10.6%7.4% conv. - **sound deadening spray foam**2K/yr-10.1%0.5% conv. [**All search terms **](https://flapen.com/research/us/automotive/sound-deadening-spray-foam/search-terms)
## **Top sound deadening spray foam 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%15%$19K30%$37K45%$56K60%$74K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 14 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Design Engineering 50220 Boom Mat Deadening Spray | Spray-On Sound Deadener for Cars | Eliminate Road Noise | Dampen Vibrations | Enhance Car Audio | Covers 20 Sq Ft**Design Engineering**$19.53**4.4★1,072 rev](https://www.amazon.com/dp/B001URKV0G) [2**Design Engineering Boom Mat Sound Deadening Material with Adhesive Backing | 2mm 12.5 x 24 (Pack of 10)**Design Engineering**$117.34**4.6★298 rev](https://www.amazon.com/dp/B0039Z3SL6) [3**Design Engineering Inc. Boom Mat Liquid Deadening Brush On | Thermal Acoustic Control | 1 Liter - up to 20 sq ft coverage**Design Engineering**$29.71**4.6★13 rev](https://www.amazon.com/dp/B0DXLKCW3M) [4**Design Engineering 050220 Boom Mat Spray-on Sound Deadening to Reduce Unwanted Road Noise and Vibration 18 Ounce (4 Pack)**Design Engineering**$64.95**4.4★1,072 rev](https://www.amazon.com/dp/B088SNMFVS) [5**Rust-Oleum 248656 Professional Grade Rubberized Undercoating Spray 15 oz Black**Rust-Oleum**$8.98**4.6★7,524 rev](https://www.amazon.com/dp/B003CT49AS)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Magic Chems Spray Foam Insulation Can (1 Pack-25.4 oz) Expanding Foam Sealant for Thermal & Acoustic Insulation Closed Cell High Density Spray Foams Covers up to 20 Board feet/sq. ft.**Magic Chems**$15.44**611 rev1y ago](https://www.amazon.com/dp/B0DNXTRWXH) [**Design Engineering Inc. Boom Mat Liquid Deadening Brush On | Thermal Acoustic Control | 1 Liter - up to 20 sq ft coverage**Design Engineering**$29.71**13 rev1y ago](https://www.amazon.com/dp/B0DXLKCW3M) [**DEI ATAC Thermal Acoustic Coating Ceramic Heat Sound Barrier Spray 15 oz**Design Engineering**$28.41**25 rev1y ago](https://www.amazon.com/dp/B0DXLWQR23) [**Design Engineering 050220 Boom Mat Spray-on Sound Deadening to Reduce Unwanted Road Noise and Vibration 18 Ounce (4 Pack)**Design Engineering**$64.95**1,072 rev6y ago](https://www.amazon.com/dp/B088SNMFVS) [**Design Engineering 050220 Boom Mat Spray-on Sound Deadening to Reduce Unwanted Road Noise and Vibration 18 Ounce (3 Pack)**Design Engineering**$44.58**530 rev7y ago](https://www.amazon.com/dp/B07TTDRP6H)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Design Engineering Boom Mat Sound Deadening Material with Adhesive Backing | 2mm 12 x 12.5 (Pack of 8)**Design Engineering**$56.27**4.6★**▲ 121%**](https://www.amazon.com/dp/B001ELW8JA) [**Design Engineering 050220 Boom Mat Spray-on Sound Deadening to Reduce Unwanted Road Noise and Vibration 18 Ounce (4 Pack)**Design Engineering**$64.95**4.4★**▲ 107%**](https://www.amazon.com/dp/B088SNMFVS) [**Design Engineering Boom Mat Sound Deadening Material with Adhesive Backing | 12 x 12.5 x 2mm (Pack of 4)**Design Engineering**$37.97**4.6★**▲ 85%**](https://www.amazon.com/dp/B000MY3NI0) [**Magic Chems Spray Foam Insulation Can (1 Pack-25.4 oz) Expanding Foam Sealant for Thermal & Acoustic Insulation Closed Cell High Density Spray Foams Covers up to 20 Board feet/sq. ft.**Magic Chems**$15.44**4.0★**▲ 47%**](https://www.amazon.com/dp/B0DNXTRWXH) [**Rust-Oleum 248656 Professional Grade Rubberized Undercoating Spray 15 oz Black**Rust-Oleum**$8.98**4.6★**▲ 42%**](https://www.amazon.com/dp/B003CT49AS)
**~~View all trending →~~**
## **What buyers say about sound deadening spray foam**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**25%
*“Affordable quality product”*
**Assembly/Installation**11%
*“Easy installation”*
**Ease Of Use**8%
*“Easy to use”*
**Audio Quality**6%
*“They sound so much better”*
**Advertised Vs Actual Product**6%
*“As described”*
**Efficiency**6%
*“A Must Have For Car Restorations”*
**Value For Money**5%
*“Worth it”*
**Noise Level**5%
*“Really helps with sound”*
**Adhesion/Stickiness**5%
*“Very good- excellent adhesive”*
**Heating**2%
*“Handy heat barrier”*
### **What buyers complain about **
**Noise Level**10%
*“it was very noisy inside was terrible”*
**Spray/Flow**9%
*“At $31 a can this stuff sprays terrible”*
**Adhesion/Stickiness**6%
*“stick just can't get”*
**Thickness**6%
*“Its definitely thicker than I expected”*
**Smell**5%
*“however for some reason it has a very awful smell”*
**Audio Quality**5%
*“Sound deaf”*
**Add-Ons/Attachments**4%
*“red accessory nozzles do not connect securely”*
**Value For Money**4%
*“A little more expensive”*
**Quality-Overall**3%
*“This stuff is overrated”*
**Advertised Vs Actual Product**3%
*“It didnt jsut meet the description”*
### **Top return reasons **
**Thin**13%
**Assembly/Installation**10%
**Adhesion/Stickiness**9%
**Size-Overall**8%
**Material Quality**6%
**Defective Material/Parts**6%
**Thickness**6%
**Value For Money**6%
**Weight Heavy**5%
**Audio Quality**4%
## **Common questions**
- **Is sound deadening spray foam profitable to sell on Amazon United States?**
- The niche generates $124K/yr across 14 tracked products. 90-day search growth is -4.5%. Flapen's verdict: Skip it (39/100).
- **How competitive is the sound deadening spray foam niche?**
- 4 brands and 75 sellers compete. The top 5 products take 74% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in sound deadening spray foam?**
- Top complaints mined from reviews: Noise Level, Spray/Flow, Adhesion/Stickiness. The return rate is 1.1%.
- **When does demand for sound deadening spray foam peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the sound deadening spray foam niche?**
- Listings span $8.98–$169.59; the average listing price is $54.08 (sweet spot $15–$100). The average incumbent carries 4,613 reviews — the moat a new listing must climb.
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