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Duct Sealant

Maybe

Returns run at only 1.1% of orders. But shoppers spend only $148K a year here, so Duct Sealant is a Maybe.

Flapen Score
57
57 / 100
Top 15% of 9,536 Tools & Home Improvement niches · +9 vs the category median of 48
Market size
$148K/yr98K searches / yr
90-day growth
+53.6%search demand this quarter
Competition
63%top-5 click share · 15 brands · 70 sellers

Flapen Score

Duct Sealant against its category

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

57Maybe
Big MarketTrendingHigh ConversionOpen MarketLow ReturnsPrice rangeAvg priceNo Dominant BrandLow Review BarrierQuality Gap
This niche Category average

Market

The Duct Sealant market on Amazon at a glance

Shoppers on Amazon United States searched for Duct Sealant 98K times last year and spent an estimated $148K. The top 5 brands take 85% of clicks. Demand peaks in Jun–Jul–Aug. Flapen scores it 57 out of 100, a Maybe.

01 · Demand

6.9% of searches ended in a purchase last week.

Shoppers searched for this 98K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. In the latest week, 6.9% of those searches ended in a purchase. Searches in the last 90 days moved +53.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $148K a year.

Searches, last 12 months
98K
Growth, 90 days vs prior 90
+53.6%
Conversion, latest week
6.9%
Market size, estimated
$148Ka year
Peak month
July2.2× the quietest month
Top search term
duct sealant19K searches a year

02 · Price

A sale here is worth $21.80.

Listings sell for $21.80 on average, from $5.00 to $68.46. Amazon reports units sold in ranges. This niche sold 6K to 8K a year. The average listing sells 250 to 500 of them. At $21.80 that is $5K to $11K a year per listing.

Average price
$21.80inside the $15 to $100 sweet spot
Price range
$5.00–$68.46
Amazon United States median price
$24.38across 115,062 niches
Units sold a year
6K–8K
Units per listing a year
250–500
Revenue per listing a year
$5K–$11K
Returns
1.1%of orders · Amazon United States median 2.1%

03 · Entry bar

The bar here is reviews.

81% of listings pay for placement with sponsored ads. 100% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #152 within Adhesives & Sealers. It carries 1,712 reviews at 4.48 stars, so a new listing needs social proof before a better product.

Sponsored listings
81%
Prime listings
100%
Out of stock, average day
0.0%
Average rank
#152in Adhesives & Sealers
Average rating
4.48 starsAmazon United States average 4.42 stars
Average reviews
1,712per listing
Listings tracked
21

04 · Newcomers

Amazon counts 2 of last year's 3 launches as successful.

3 products launched here in the last 12 months. Amazon counts 2 of them as successful launches, new products that hit its first-year sales bar. The brands on the shelf have sold for 58 months on average, so the names here are settling in.

Launched, last 12 months
3
Successful launches
2Amazon's first-year sales bar
Average brand age
58 months

Products

Top Duct Sealant products & what they sell for

Every tracked product: its share of the shelf, its reviews, and its price.

Competition

Competition: brands, sellers & click share

The top 5 products take 63% of clicks. Leaders hold, but buyers still shop past them.

$0$7K$15K$22K$30K1101001K10K100K Review Count Sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)1 product missing review or click data not plotted

Brands

15 rising

Sellers

70

Top-5 brand share

85%

Top 20: 100%

Top-5 click share

63%

Top 20: 99%

Open market

13%

  • Red Devil65%
  • Rectorseal8%
  • Henry7%
  • KEPTFIT3%
  • Carlisle Paddles2%
  • J-B Weld2%
  • Open — no brand owns it (9 brands, 13%)

Demand

Duct Sealant search demand

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

4K3KSpike '24Spike '25Prime Day '25Spike '26Prime Day '26SepDecMarJunAugNovMarMay

Peak months: Jun, Jul, Aug · busiest ÷ quietest = 2.2×

Search terms

Top Duct Sealant search terms shoppers use

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

  • duct sealant19K/yr
  • mastic sealant21K/yr
  • mastic duct sealant11K/yr
  • duct mastic8K/yr
  • waterproof putty sealant7K/yr
  • hvac sealant6K/yr
  • hvac mastic5K/yr
  • air duct sealant6K/yr
  • hvac duct sealant5K/yr
  • duct mastic sealant4K/yr

Reviews and returns

What reviews say buyers love and hate about Duct Sealant

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

15%of positive reviews mention “Quality-Overall”
27%of negative reviews mention “Leak-Proof”
1.1%of orders come back
“Sprayer tank leak”
A buyer, on “Leak-Proof”27% 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.

19 topics

NegativePositive

FAQ

Common Duct Sealant questions

Answered from the same tracked data.