closed cell foam
Skip itA small market ($87K/yr) — this niche doesn't clear our bar today.
Avg price
Incredible$28.83avg listing price — sweet spot $15–$100
Price range
Great$9.21–$74.32cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good957.53avg incumbent reviews — the moat a new listing must climb
Returns
Good2.9%return rate — above 5% kills the launch gate
Brand share
Okay76%top-5 brand share — brands hold most of the demand
Growth
Okay+12.4%90-day search growth — must beat 0% to launch
Quality gap
Okay4.5★avg incumbent rating — lower means beatable quality
Competition
Okay65%top-5 click share — leaders hold, buyers still browse
Conversion
Okay2.2%search→purchase rate — share of searches ending in a sale
Market size
Bad$87K$87K/yr · 139K searches
According to Flapen's Amazon United States niche tracking, closed cell foam is a $87K/yr Amazon United States market (139K searches/yr). The top 5 brands hold 76% of demand. Verdict: Skip it — 43/100.
Data updated Jul 9, 2026 · scored weekly · How we score niches
closed cell foam market data
- Units sold / yr
- 3K–3K
- avg 0–100/product
- Revenue / yr
- $72K–$86K
- units × avg price
- Conversion rate
- 2.2%
- Avg BSR
- #30
- Page quality
- 0%
- Prime
- 100%
- Sponsored
- 95%
- Out of stock
- 0.0%
- Avg brand age
- 51 months
- Avg seller age
- 186 days
Competition & brand share
The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.Brands
13 falling
Sellers
18
Top-5 brand share
76%
Top 20: 100%
Top-5 click share
65%
Top 20: 100%
Open market
19%
- Artilife37%
- Siless15%
- FOAMZZ12%
- VOISEN7%
- Treela5%
- AggSound5%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — +12.4% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.5×
Top closed cell foam search terms
- closed cell foam79K/yr
- closed cell foam sheet28K/yr
- closed-cell foam6K/yr
- closed cell foam roll5K/yr
- high density closed cell foam5K/yr
- closed cell foam insulation8K/yr
- closed cell foam sheets5K/yr
- close cell foam3K/yr
Top closed cell 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.
All 19 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Artilife Closed Cell Foam Roll Easy to Cut into Foam Sheets & Foam Pads for Sound Insulation Cushion & DIY Projects (1/2 T x 13 W x 60 L)
Artilife$24.454.5★873 rev
Foamzz by Big UGGLY High-Density Foam Panels Closed-Cell Insulation Foam Pads Black 12 X 12 X 1 (2 Pack)
FOAMZZ$18.234.6★123 rev
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$44.914.5★3,473 rev
VOISEN Sound Deading Material for Cars 157 MIL (4 mm) 36 sqft Sound Deadening Mat Sound Deadening Car Sound Deadening Closed Cell Foam PE Foam Sound Deadener Material & Heat Barrier
VOISEN$36.044.6★381 rev
Treela 2 Pcs Customizable Polyethylene Foam Sheets 16x12x2 Black Thick Cuttable Foam Padding Inserts for Cases Polyethylene Block Sheet for Packing Toolbox Storage and Craft Pad
Treela$23.064.6★143 rev
Newest
by launch date
ToLanbbt Sponge Neoprene Foam Sheet with Adhesive - 1/4 Thick 12 x 59 Closed Cell Foam Rubber Roll Weatherproof Soundproof Padding for Automotive Cabinet Furniture Crafts DIY Black
ToLanbbt$15.1977 rev
ToLanbbt 8 PCS Adhesive Foam Padding Sheets Closed Cell Neoprene Foam Sheet 1/2 Thick 4 x 4 Self Stick Insulation Anti Vibration Pads Anti-Slip for Furniture Cars Speakers DIY
ToLanbbt$9.21210 rev
Storystore Foam Rubber Sheet with Adhesive 12 x 59 x 1/4 Inch Closed Cell Insulation Neoprene Foam Sheet Multi-Function Soundproof Weatherproof Foam Padding
Storystore$16.60185 rev
VOISEN Sound Deading Material for Cars 157 MIL (4 mm) 36 sqft Sound Deadening Mat Sound Deadening Car Sound Deadening Closed Cell Foam PE Foam Sound Deadener Material & Heat Barrier
VOISEN$36.04381 rev
FoamTouch 1 Thick x 24 Wide x 96 Long Charcoal High Density Foam Ideal for Foam Padding Seat Replacement Chair Cushion Replacement Wheelchair Seat Cushion and More
FoamTouch$29.77107 rev
Trending
90-day click momentum
Artilife Closed Cell Foam Roll Easy to Cut into Foam Sheets & Pads for Sound Insulation Cushion & DIY Projects (1/8 T x 13 W x 80 L)
Artilife$12.924.5★
Artilife Closed Cell Foam Roll Easy to Cut into Foam Sheets & Foam Pads for Sound Insulation Cushion & DIY Projects (1/8 T x 17 W x 80 L)
Artilife$17.184.5★
Siless LinerPRO 2in1 200 mil (5mm) 36 sqft Car Sound Deadening & Heat Insulation Closed Cell Foam - PE Foam Sound Deadener
Siless$74.324.6★
VOISEN Sound Deading Material for Cars 157 MIL (4 mm) 36 sqft Sound Deadening Mat Sound Deadening Car Sound Deadening Closed Cell Foam PE Foam Sound Deadener Material & Heat Barrier
VOISEN$36.044.6★
Artilife Closed Cell Foam Roll Easy to Cut into Foam Sheets & Foam Pads for Sound Insulation Cushion & DIY Projects (1/2 T x 13 W x 60 L)
Artilife$24.454.5★
What buyers say about closed cell foam
What buyers praise and complain about, mined from review topics.What buyers love
“Sticks good”
“So far, excellent, was extremely easy to work with”
“As advertised”
“Easy to use”
“Worth it”
“Easy Install”
“This material is easy to work with”
“It works well”
“Quiet”
“Fit head to head perfectly”
What buyers complain about
“The adhesive didnt seem strong enough”
“Not good sound deadening”
“Actually only 1/16th inch thick”
“Its not worth the cost”
“Very poor quality sound deadening”
“Not high quality”
“are from improper installation”
“This product doesnt work”
“Not closed cell foam”
“Not what it should be”
Top return reasons
Common questions
- Is closed cell foam profitable to sell on Amazon United States?
- The niche generates $87K/yr across 19 tracked products. 0 of 1 products launched in the last 360 days are still selling. 90-day search growth is +12.4%. Flapen's verdict: Skip it (43/100).
- How competitive is the closed cell foam niche?
- 13 brands and 18 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 76% of demand.
- What do buyers complain about in closed cell foam?
- Top complaints mined from reviews: Adhesion/Stickiness, Noise Level, Thickness. The return rate is 2.9%.
- When does demand for closed cell foam peak?
- Demand is steady year-round — the busiest month runs 1.5× the quietest.
- What does it cost to enter the closed cell foam niche?
- Listings span $9.21–$74.32; the average listing price is $28.83 (sweet spot $15–$100). The average incumbent carries 958 reviews — the moat a new listing must climb.