Flex Seal Black
MaybeReturns run at only 0.2% of orders. But the top 5 brands take 97% of clicks, so Flex Seal Black is a Maybe.
- Flapen Score
- 54 / 100Top 24% of 9,536 Tools & Home Improvement niches · +6 vs the category median of 4854
- Market size
- $80K/yr32K searches / yr
- 90-day growth
- +63.6%search demand this quarter
- Competition
- 68%top-5 click share · 7 brands · 112 sellers
Flapen Score
Flex Seal Black against its category
The dotted line is the Tools & Home Improvement average. Past it, Flex Seal Black is stronger. Inside it, weaker.
Market
The Flex Seal Black market on Amazon at a glance
Shoppers on Amazon United States searched for Flex Seal Black 32K times last year and spent an estimated $80K. The top 5 brands take 97% of clicks. Demand peaks in May–Sep. Flapen scores it 54 out of 100, a Maybe.
01 · Demand
9.4% of searches ended in a purchase last week.
Shoppers searched for this 32K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. In the latest week, 9.4% of those searches ended in a purchase. Searches in the last 90 days moved +63.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $80K a year.
- Searches, last 12 months
- 32K
- Growth, 90 days vs prior 90
- +63.6%
- Conversion, latest week
- 9.4%
- Market size, estimated
- $80Ka year
- Peak month
- September18.1× the quietest month
- Top search term
- flex seal black13K searches a year
02 · Price
A sale here is worth $26.88.
Listings sell for $26.88 on average, from $6.20 to $108.32. Amazon reports units sold in ranges. This niche sold 4K to 5K a year. The average listing sells 100 to 250 of them. At $26.88 that is $3K to $7K a year per listing.
- Average price
- $26.88inside the $15 to $100 sweet spot
- Price range
- $6.20–$108.32
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 4K–5K
- Units per listing a year
- 100–250
- Revenue per listing a year
- $3K–$7K
- Returns
- 0.2%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
63% of listings pay for placement with sponsored ads. 94% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #44 within Adhesives & Sealers. It carries 12,405 reviews at 4.39 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 63%
- Prime listings
- 94%
- Out of stock, average day
- 0.0%
- Average rank
- #44in Adhesives & Sealers
- Average rating
- 4.39 starsAmazon United States average 4.42 stars
- Average reviews
- 12,405per listing
- Listings tracked
- 16
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 63 months on average, so the names here are established.
- Launched, last 12 months
- 0
- Successful launches
- 0Amazon's first-year sales bar
- Average brand age
- 63 months
Products
Top Flex Seal Black 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
Flex Seal 14 oz Black Stop Leaks Instantly Waterproof Rubber Spray On Sealant Coating Perfect for Gutters Wood RV Campers Roof Repair Skylights Windows and More
- Price
- $14.34
- Rating
- 4.4/5
- Reviews
- 39,391
- Age
- 15y ago

Flex Seal MAX 17 oz 2-Pack Black Stop Leaks Instantly Waterproof Rubber Spray On Sealant Coating Perfect for Gutters Wood RV Campers Roof Repair Skylights Windows and More
- Price
- $33.04
- Rating
- 4.4/5
- Reviews
- 39,391
- Age
- 3y ago

Flex Seal Liquid Rubber Coating Sealant Waterproof Flexible Breathable and UV Resistant Roof Repair Basements RV Campers Trailers Marine EPDM Masonry Black 16 oz
- Price
- $18.29
- Rating
- 4.5/5
- Reviews
- 2,242
- Age
- 10y ago

Flex Seal Mini Black Stop Leaks Instantly Waterproof Rubber Spray On Sealant Coating Travel Size Perfect for Gutters Wood RV Campers Roof Repair Skylights Windows and More
- Price
- $6.37
- Rating
- 4.1/5
- Reviews
- 288
- Age
- 7y ago

Flex Seal 14 oz 2-Pack Black Stop Leaks Instantly Waterproof Rubber Spray On Sealant Coating Perfect for Gutters Wood RV Campers Roof Repair Skylights Windows and More
- Price
- $28.23
- Rating
- 4.4/5
- Reviews
- 39,391
- Age
- 14y ago
Trending
90-day click momentum
Flex Seal Mini Black Stop Leaks Instantly Waterproof Rubber Spray On Sealant Coating Travel Size Perfect for Gutters Wood RV Campers Roof Repair Skylights Windows and More
- Price
- $6.37
- Rating
- 4.1/5
- Reviews
- 288
- Age
- 7y ago

Flex Seal 14 oz 2-Pack Black Stop Leaks Instantly Waterproof Rubber Spray On Sealant Coating Perfect for Gutters Wood RV Campers Roof Repair Skylights Windows and More
- Price
- $28.23
- Rating
- 4.4/5
- Reviews
- 39,391
- Age
- 14y ago

Flex Seal MAX 17 oz 1-Pack Black Stop Leaks Instantly Waterproof Rubber Spray On Sealant Coating Perfect for Gutters Wood RV Campers Roof Repair Skylights Windows and More
- Price
- $16.71
- Rating
- 4.4/5
- Reviews
- 39,391
- Age
- 5y ago

Leak Stopper Rubber Flexx Waterproof Repair & Sealant Spray - Point & Spray to Seal Cracks Holes Leaks Corrosion & More | Black 1 Bottle 18oz
- Price
- $11.62
- Rating
- 4.2/5
- Reviews
- 2,096
- Age
- 21y ago

Flex Seal Liquid Rubber Coating Sealant Waterproof Flexible Breathable and UV Resistant Roof Repair Basements RV Campers Trailers Marine EPDM Masonry Black 16 oz
- Price
- $18.29
- Rating
- 4.5/5
- Reviews
- 2,242
- Age
- 10y ago
Newest
by launch date
Flex Seal Epoxy Extreme Liquid Multi-Purpose Durable Permanent Watertight Long-Lasting Bond for Automotive Marine Plumbing Home & Tool Repairs Cures Black 0.85 oz (25 mL) Syringe
- Price
- $9.70
- Rating
- 4.6/5
- Reviews
- 239
- Age
- 1y ago

Flex Caulk Waterproof & Weatherproof Hybrid Polymer Sealant Strong Paintable Indoor Outdoor Bath Shower Sink Window Baseboards Door RV Roof Wood Auto & Marine Clear 6.6 oz 1-Pack
- Price
- $19.51
- Rating
- 4.5/5
- Reviews
- 1,943
- Age
- 2y ago

Flex Seal MAX 17 oz 2-Pack Black Stop Leaks Instantly Waterproof Rubber Spray On Sealant Coating Perfect for Gutters Wood RV Campers Roof Repair Skylights Windows and More
- Price
- $33.04
- Rating
- 4.4/5
- Reviews
- 39,391
- Age
- 3y ago

Flex Seal Spray Rubber Sealant Coating 14-oz Black (6 Pack)
- Price
- $78.76
- Rating
- 4.4/5
- Reviews
- 53
- Age
- 4y ago

Flex Seal MAX 17 oz 1-Pack Black Stop Leaks Instantly Waterproof Rubber Spray On Sealant Coating Perfect for Gutters Wood RV Campers Roof Repair Skylights Windows and More
- Price
- $16.71
- Rating
- 4.4/5
- Reviews
- 39,391
- Age
- 5y ago
Competition
Competition: brands, sellers & click share
The top 5 products take 68% of clicks. Leaders hold, but buyers still shop past them.
Brands
7 falling
Sellers
112
Top-5 brand share
97%
Top 20: 100%
Top-5 click share
68%
Top 20: 100%
Open market
1%
- Flex Seal70%
- Flex Seal Liquid18%
- Flex Shot3%
- Leak Stopper3%
- GORILLA2%
- Flex Paste2%
- Open — no brand owns it (1 brand, 1%)
Demand
Flex Seal Black search demand
Weekly searches over the year, seasonality beneath. Pick a range.
Peak months: May, Sep · busiest ÷ quietest = 18.1×
Search terms
Top Flex Seal Black search terms shoppers use
The exact words shoppers type, with yearly volume, growth, and conversion.
- flex seal black13K/yr
- black flex seal7K/yr
- flex seal spray black7K/yr
- flex seal black spray2K/yr
- black flex seal spray2K/yr
Reviews and returns
What reviews say buyers love and hate about Flex Seal Black
We read the reviews and the return reasons for every product selling here.
“Didn't work properly”
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.
18 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 Flex Seal Black questions
Answered from the same tracked data.









