sound deadening spray foam
Skip itBrand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Returns
Great1.1%return rate — above 6% kills the launch gate
Avg price
Great$54.08avg listing price — sweet spot $15–$100
Conversion
Good5.4%search→purchase rate — share of searches ending in a sale
Price range
Good$8.98–$169.59cheapest to priciest tracked listing — scored on the share inside $15–$100
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Market size
Okay$124K$124K/yr · 42K searches
Review moat
Bad4,612.5avg incumbent reviews — the moat a new listing must climb
Growth
Bad-4.5%90-day search growth — must beat 0% to launch
Competition
Bad74%top-5 click share — a locked-up shelf
Brand share
Bad100%top-5 brand share — brand-locked demand
Competition
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%
Open market
0%
- Design Engineering86%
- KILMAT7%
- Rust-Oleum5%
- Magic Chems2%
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 14 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
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$19.534.4★1,072 rev
Design Engineering Boom Mat Sound Deadening Material with Adhesive Backing | 2mm 12.5 x 24 (Pack of 10)
Design Engineering$117.344.6★298 rev
Design Engineering Inc. Boom Mat Liquid Deadening Brush On | Thermal Acoustic Control | 1 Liter - up to 20 sq ft coverage
Design Engineering$29.714.6★13 rev
Design Engineering 050220 Boom Mat Spray-on Sound Deadening to Reduce Unwanted Road Noise and Vibration 18 Ounce (4 Pack)
Design Engineering$64.954.4★1,072 rev
Rust-Oleum 248656 Professional Grade Rubberized Undercoating Spray 15 oz Black
Rust-Oleum$8.984.6★7,524 rev
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$15.44611 rev
Design Engineering Inc. Boom Mat Liquid Deadening Brush On | Thermal Acoustic Control | 1 Liter - up to 20 sq ft coverage
Design Engineering$29.7113 rev
DEI ATAC Thermal Acoustic Coating Ceramic Heat Sound Barrier Spray 15 oz
Design Engineering$28.4125 rev
Design Engineering 050220 Boom Mat Spray-on Sound Deadening to Reduce Unwanted Road Noise and Vibration 18 Ounce (4 Pack)
Design Engineering$64.951,072 rev
Design Engineering 050220 Boom Mat Spray-on Sound Deadening to Reduce Unwanted Road Noise and Vibration 18 Ounce (3 Pack)
Design Engineering$44.58530 rev
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$56.274.6★
Design Engineering 050220 Boom Mat Spray-on Sound Deadening to Reduce Unwanted Road Noise and Vibration 18 Ounce (4 Pack)
Design Engineering$64.954.4★
Design Engineering Boom Mat Sound Deadening Material with Adhesive Backing | 12 x 12.5 x 2mm (Pack of 4)
Design Engineering$37.974.6★
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$15.444.0★
Rust-Oleum 248656 Professional Grade Rubberized Undercoating Spray 15 oz Black
Rust-Oleum$8.984.6★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -4.5% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.3×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Affordable quality product”
“Easy installation”
“Easy to use”
“They sound so much better”
“As described”
“A Must Have For Car Restorations”
“Worth it”
“Really helps with sound”
“Very good- excellent adhesive”
“Handy heat barrier”
What buyers complain about
“it was very noisy inside was terrible”
“At $31 a can this stuff sprays terrible”
“stick just can't get”
“Its definitely thicker than I expected”
“however for some reason it has a very awful smell”
“Sound deaf”
“red accessory nozzles do not connect securely”
“A little more expensive”
“This stuff is overrated”
“It didnt jsut meet the description”