Duct Sealant
MaybeReturns run at only 1.1% of orders. But shoppers spend only $148K a year here, so Duct Sealant is a Maybe.
- Flapen Score
- 57 / 100Top 15% of 9,536 Tools & Home Improvement niches · +9 vs the category median of 4857
- 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.
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.
Top sellers
by 90-day click share
Red Devil 0841DW F-Seal 181 Fiber Reinforced Water Based Duct Sealant 1 Gallon White
- Price
- $28.78
- Rating
- 4.5/5
- Reviews
- 1,547
- Age
- 8y ago

Red Devil 0841DX F-Seal 181 Duct Seal Fiber Reinforced Water Based Duct Sealant 1 Gallon Gray Made in USA
- Price
- $24.83
- Rating
- 4.5/5
- Reviews
- 1,547
- Age
- 10y ago

Red Devil 0841DS RD-DS 181 Acrylic Latex Duct Sealant 1/2 Gallon Gray
- Price
- $26.12
- Rating
- 4.6/5
- Reviews
- 622
- Age
- 11y ago

RectorSeal Duct Seal 81880 Compound Easily Applied to Plumbing & Metal Fabrication Paintable General Purpose Sealant 1 lb
- Price
- $5.00
- Rating
- 4.7/5
- Reviews
- 1,842
- Age
- 14y ago

Henry 314 Premixed Mastic Adhesive 1 QT Ready Set
- Price
- $12.68
- Rating
- 4.5/5
- Reviews
- 384
- Age
- 19y ago
Trending
90-day click momentum
Flex Seal Power Putty Moldable Waterproof Rubberized Sealant Instantly Fills Gaps Cracks or Holes Removable Reusable Works Underwater Pipes Marine Auto RV Metal Plastic Wood Gray 16 oz
- Price
- $14.76
- Rating
- 4.1/5
- Reviews
- 161
- Age
- 2mo ago

Waterproof Sealant Mastic 6 Pack New Type White Seal Putty Waterproof Duct Seal Repair Sealing Clay Quick Mending Mud for Drain Connection Suitable for Wall Hole Air Conditioning Hole Repair
- Price
- $9.87
- Rating
- 4.5/5
- Reviews
- 50
- Age
- 10mo ago

Red Devil 0841EX E-181 Duct Seal Fiber Reinforced Water Based Duct Sealant 1 Gallon Gray Made in USA
- Price
- $32.73
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 9mo ago

8 Pack White Seal Putty - Grade Waterproof Duct Sealant Clay Fast Setting Repair Putty for Tight Drain Joints Wall Cavities Air Conditioning Pipe Openings & Air Leak Prevention
- Price
- $10.95
- Rating
- 4.3/5
- Reviews
- 83
- Age
- 1y ago

Red Devil 0846DX F Seal 181 Fiber Reinforced Water Based Duct Sealant 10.1 oz. Gray 1 Pack
- Price
- $7.82
- Rating
- 4.5/5
- Reviews
- 1,547
- Age
- 10y ago
Newest
by launch date
Flex Seal Power Putty Moldable Waterproof Rubberized Sealant Instantly Fills Gaps Cracks or Holes Removable Reusable Works Underwater Pipes Marine Auto RV Metal Plastic Wood Gray 16 oz
- Price
- $14.76
- Rating
- 4.1/5
- Reviews
- 161
- Age
- 2mo ago

Red Devil 0841EX E-181 Duct Seal Fiber Reinforced Water Based Duct Sealant 1 Gallon Gray Made in USA
- Price
- $32.73
- Rating
- 0.0/5
- Reviews
- 0
- Age
- 9mo ago

Waterproof Sealant Mastic 6 Pack New Type White Seal Putty Waterproof Duct Seal Repair Sealing Clay Quick Mending Mud for Drain Connection Suitable for Wall Hole Air Conditioning Hole Repair
- Price
- $9.87
- Rating
- 4.5/5
- Reviews
- 50
- Age
- 10mo ago

8 Pack White Seal Putty - Grade Waterproof Duct Sealant Clay Fast Setting Repair Putty for Tight Drain Joints Wall Cavities Air Conditioning Pipe Openings & Air Leak Prevention
- Price
- $10.95
- Rating
- 4.3/5
- Reviews
- 83
- Age
- 1y ago

HVAC Guys ThermaTack Aerosol Spray Glue for HVAC Duct Wrap | Duct Insulation Adhesive Spray | Industrial-Grade Fast-Tacking Sealant
- Price
- $17.85
- Rating
- 4.3/5
- Reviews
- 54
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take 63% of clicks. Leaders hold, but buyers still shop past them.
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.
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.
“Sprayer tank leak”
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
Keep looking
Related niches
Niches in the same category that score near this one. Research these next.
Best Flapen score
The highest-scoring niches we track right now, across every category.
FAQ
Common Duct Sealant questions
Answered from the same tracked data.









