Is expanding foam profitable to sell on Amazon United States?

The niche generates $618K/yr across 24 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +21.9%. Flapen's verdict: Worth a look (63/100).

How competitive is the expanding foam niche?

13 brands and 128 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 84% of demand.

What do buyers complain about in expanding foam?

Top complaints mined from reviews: Spray/Flow, Functionality-Overall, Quality-Overall. The return rate is 0.1%.

When does demand for expanding foam peak?

Demand peaks in Oct; the busiest month runs 1.6× the quietest.

What does it cost to enter the expanding foam niche?

Listings span $6.32–$87.04; the average listing price is $22.06 (sweet spot $15–$100). The average incumbent carries 4,059 reviews — the moat a new listing must climb.

expanding foam

Worth a look

Shows low returns (0.1%), but a failed launch gate (market size, growth, or returns) keeps it on the watch list.

Returns

Incredible0.1%

return rate — above 5% kills the launch gate

Avg price

Great$22.06

avg listing price — sweet spot $15–$100

Price range

Great$6.32–$87.04

cheapest to priciest tracked listing — scored on the share inside $15–$100

Conversion

Great9.0%

search→purchase rate — share of searches ending in a sale

Quality gap

Great4.3★

avg incumbent rating — lower means beatable quality

Market size

Good$618K

$618K/yr · 311K searches

Growth

Good+21.9%

90-day search growth — must beat 0% to launch

Competition

Okay59%

top-5 click share — leaders hold, buyers still browse

Brand share

Okay84%

top-5 brand share — brands hold most of the demand

Review moat

Bad4,058.96

avg incumbent reviews — the moat a new listing must climb

According to Flapen's Amazon United States niche tracking, expanding foam is a $618K/yr Amazon United States market (311K searches/yr). The top 5 brands hold 84% of demand. Demand peaks in Oct. Verdict: Worth a look — 63/100.

Data updated Jul 27, 2026 · scored weekly · How we score niches

expanding foam market data

Units sold / yr: 25K–30K; avg 1,500–2,000/product
Revenue / yr: $552K–$662K; units × avg price
Conversion rate: 9.0%
Avg BSR: #31
Page quality: 0%
Prime: 92%
Sponsored: 79%
Out of stock: 0.0%
Avg brand age: 61 months
Avg seller age: 175 days

Competition & brand share

The top 5 products take 59% of clicks — established leaders, but buyers still shop beyond them.

Brands

13 rising

Sellers

128

Top-5 brand share

84%

Top 20: 100%

Top-5 click share

59%

Top 20: 95%

Open market

13%

Great Stuff36%
Loctite29%
Red Devil7%
KRAKEN BOND7%
Tomcat4%
DAP3%
Open — no brand owns it (7 brands, 13%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — +21.9% search growth over the last 90 days.

Peak months: Oct · busiest ÷ quietest = 1.6×

Open Trend

Top expanding foam search terms

expanding foam215K/yr +17.0%5.9% conv.
expandable foam21K/yr +34.4%4.0% conv.
expansion foam15K/yr +27.5%6.2% conv.
loctite foam11K/yr +42.4%5.3% conv.
loctite spray foam11K/yr +44.8%4.6% conv.
tite foam9K/yr +26.8%5.4% conv.
white spray foam12K/yr +31.1%4.2% conv.
loctite tite foam7K/yr +64.7%4.9% conv.
construction foam6K/yr +6.8%4.7% conv.
loctite foam gaps and cracks3K/yr +63.1%6.9% conv.

All search terms

Top expanding 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 24 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

Great Stuff 99108824 Smart Dispenser Gaps & Cracks Cream 12 Ounce

Great Stuff$8.164.5★9,263 rev

Loctite Tite Foam Big Gaps Spray Foam Sealant 12 fl oz Can 1 Pack - Polyurethane Expanding Insulation

Loctite$8.204.4★11,678 rev

Loctite Tite Foam Gaps & Cracks Spray Foam Sealant 12 fl oz Can 1 Pack - Polyurethane Expanding Insulation

Loctite$7.804.4★21,558 rev

Great Stuff 99112809 Smart Dispenser Pestblock Gray

Great Stuff$10.544.3★4,809 rev

Red Devil 0909 Spray Foam Fill Large Gaps & Cracks Expanding Insulation Polyurethane Foam Sealant 12 Oz Off White

Red Devil$6.324.4★750 rev

Newest

by launch date

Loctite Tite Foam Big Gaps Bright White 12 oz Can Pack of 2 - High Density Insulating Foam Sealant for Gaps Up to 3 Inches Durable Flexible UV Resistant

Loctite$20.6811,678 rev

5mo ago

Stanley F905 Gaps & Cracks Sealant (2x12 Oz.) Polyurethane Spray Foam Insulation for Window & Door Waterproof Gap Filler Low Expansion Foam for Indoor & Outdoor Use | Straw Use | 12 Oz. 2 Pack

STANLEY$16.41112 rev

1y ago

Stanley F993 PestBlocker Foam (2x12oz) Gaps & Cracks Filler Expanding Sealant Spray for Indoor/Outdoor Use Paintable Waterproof Polyurethane Insulation Foam with Straw Applicator | 2 Pack

STANLEY$19.76216 rev

1y ago

DAP Wall and Cavity Foam with Wide Spray Applicator Aerosol Off White 20 oz. (7565000370)

DAP$24.91404 rev

2y ago

2 Quart Marine Flotation Foam Kit 2 lb Density Polyurethane Foam

Oycevila$37.0199 rev

2y ago

What buyers say about expanding foam

What buyers praise and complain about, mined from review topics.

What buyers love

Efficiency15%

“Works very well”

Quality-Overall14%

“One cannworked great”

Advertised Vs Actual Product12%

“As advertised”

Ease Of Use11%

“EASY to use”

Value For Money9%

“Good for price”

Stretchability/Expandability/Elasticity6%

“They expand so that is good”

Spray/Flow4%

“Works great, all cans sprayed perfectly”

Adhesion/Stickiness2%

“The adhesion is super strong”

Color2%

“Good color”

Ease Of Cleaning2%

“The can stays workable between sessions if you clean the straw — much better shelf life than competing foams”

What buyers complain about

Spray/Flow12%

“Spray never worked like it was supposed to”

Functionality-Overall9%

“Didn't work”

Quality-Overall8%

“LOW QUALITY”

Adhesion/Stickiness8%

“sticky”

Ease Of Cleaning6%

“Very messy and impossible to clean up”

Leak-Proof6%

“Product leaked all over”

Value For Money5%

“Too expensive”

Color5%

“horrible color”

Ease Of Use4%

“Not easy to use”

Stretchability/Expandability/Elasticity4%

“doesn't expand as advertised”

Top return reasons

Stretchability/Expandability/Elasticity25%

Advertised Vs Actual Product19%

Value For Money12%

Size-Overall10%

Functionality-Overall7%

Leak-Proof5%

Hard Feel5%

Foam4%

Instructions/User Manual/Troubleshooting2%

Defective Material/Parts2%

Common questions

Is expanding foam profitable to sell on Amazon United States?: The niche generates $618K/yr across 24 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is +21.9%. Flapen's verdict: Worth a look (63/100).
How competitive is the expanding foam niche?: 13 brands and 128 sellers compete. The top 5 products take 59% of clicks and top 5 brands hold 84% of demand.
What do buyers complain about in expanding foam?: Top complaints mined from reviews: Spray/Flow, Functionality-Overall, Quality-Overall. The return rate is 0.1%.
When does demand for expanding foam peak?: Demand peaks in Oct; the busiest month runs 1.6× the quietest.
What does it cost to enter the expanding foam niche?: Listings span $6.32–$87.04; the average listing price is $22.06 (sweet spot $15–$100). The average incumbent carries 4,059 reviews — the moat a new listing must climb.