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Crack Filler

Maybe

An estimated 0.0% of orders come back. But the top 5 brands take 100% of clicks, so Crack Filler is a Maybe.

Flapen Score
52
52 / 100
Top 31% of 9,536 Tools & Home Improvement niches · +4 vs the category median of 48
Market size
$1.3M/yr462K searches / yr
90-day growth
+9.3%search demand this quarter
Competition
79%top-5 click share · 5 brands · 113 sellers

Flapen Score

Crack Filler against its category

The dotted line is the Tools & Home Improvement average. Past it, Crack Filler is stronger. Inside it, weaker.

52Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Crack Filler market on Amazon at a glance

Shoppers on Amazon United States searched for Crack Filler 462K times last year and spent an estimated $1.3M. All 5 brands take every click. Flapen scores it 52 out of 100, a Maybe.

01 · Demand

An estimated 8.1% of those searches ended in a purchase.

Shoppers searched for this 462K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 8.1% of those searches ended in a purchase. Searches in the last 90 days moved +9.3% against the 90 days before. Searches, conversion and average price together put the market at an estimated $1.3M a year.

Searches, last 12 months
462K
Growth, 90 days vs prior 90
+9.3%
Conversion, latest week
8.1%
Market size, estimated
$1.3Ma year
Peak month
November1.6× the quietest month
Top search term
great stuff spray foam219K searches a year

02 · Price

A sale here is worth $33.96.

Listings sell for $33.96 on average, from $8.17 to $189.38. Amazon reports units sold in ranges. This niche sold 40K to 50K a year. The average listing sells 3,000 to 4,000 of them. At $33.96 that is $102K to $136K a year per listing.

Average price
$33.96inside the $15 to $100 sweet spot
Price range
$8.17–$189.38
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
40K–50K
Units per listing a year
3,000–4,000
Revenue per listing a year
$102K–$136K
Returns
0.0%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is reviews.

82% of listings pay for placement with sponsored ads. 73% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #37 within Painting Supplies & Tools. It carries 3,426 reviews at 4.45 stars, so a new listing needs social proof before a better product.

Sponsored listings
82%
Prime listings
73%
Out of stock, average day
0.0%
Average rank
#37in Painting Supplies & Tools
Average rating
4.45 starsAmazon United States average 4.42 stars
Average reviews
3,426per listing
Listings tracked
11

04 · Newcomers

Brands here are settling in.

The brands on the shelf have sold for 40 months on average, so the names here are settling in.

Launched, last 12 months
0
Successful launches
0Amazon's first-year sales bar
Average brand age
40 months

Products

Top Crack Filler products & what they sell for

The products selling here, as shoppers see them on Amazon. Shelf share and sales are our estimates.

Prices and ratings read from Amazon on Jul 28, 2026. The live listing can differ.

Competition

Competition: brands, sellers & click share

The top 5 products take an estimated 79% of clicks. A locked shelf that new listings rarely crack.

$0$127K$254K$382K$509K1001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

Brands

5 falling

Sellers

113

Est. top-5 brand share

100%

Top 20: 100%

Est. top-5 click share

79%

Top 20: 100%

Open market

0%

  • Great Stuff82%
  • DOW CHEMICAL9%
  • SPRAYMAN3%
  • Loctite3%
  • GREAT STUFF PRO3%

Demand

Crack Filler search demand

Weekly searches over the year, seasonality beneath. Pick a range.

10K6KSpike '24Prime Day '25Spike '26SepDecMarJunAugNovMarMay

No pronounced peak months · busiest ÷ quietest = 1.6×

Search terms

Top Crack Filler search terms shoppers use

The exact words shoppers type, with estimated yearly volume, growth, and conversion.

  • great stuff spray foam219K/yr
  • gap filler79K/yr
  • great stuff65K/yr
  • great stuff gaps and cracks19K/yr
  • great stuff foam18K/yr
  • wall gap filler10K/yr
  • gap filler for wall15K/yr
  • gap sealer6K/yr
  • great stuff expanding foam5K/yr
  • great stuff gaps and cracks spray foam3K/yr

Reviews and returns

What reviews say buyers love and hate about Crack Filler

We read the reviews and the return reasons for every product selling here.

16%of positive reviews mention “Quality-Overall”
9%of negative reviews mention “Spray/Flow”
<0.1%of orders come back, a rate Amazon rounds to zero
“Didn't spray”
A buyer, on “Spray/Flow”9% of negative reviews mention the same topic

Every topic

Every topic buyers talk about, one row each.

Red shows the share of negative reviews and green the share of positive reviews, biggest topic first. Open a row to read what they wrote.

15 topics

NegativePositive

FAQ

Common Crack Filler questions

Answered from the same tracked data.

Figures on this page are estimates modeled from public Amazon pages and third-party keyword data. Amazon does not supply them, and no connected seller's data is used. How we handle Amazon data