Seam Sealer
MaybeProducts sell for $21.12 on average, inside the sweet spot. But demand is soft, at +5.6% this quarter, so Seam Sealer is a Maybe.
- Flapen Score
- 55 / 100Top 23% of 7,287 Automotive niches · +6 vs the category median of 4955
- Market size
- $434K/yr225K searches / yr
- 90-day growth
- +5.6%search demand this quarter
- Competition
- 60%top-5 click share · 11 brands · 84 sellers
Flapen Score
Seam Sealer against its category
The dotted line is the Automotive average. Past it, Seam Sealer is stronger. Inside it, weaker.
Market
The Seam Sealer market on Amazon at a glance
Shoppers on Amazon United States searched for Seam Sealer 225K times last year and spent an estimated $434K. The top 5 brands take 84% of clicks. Flapen scores it 55 out of 100, a Maybe.
01 · Demand
An estimated 9.1% of those searches ended in a purchase.
Shoppers searched for this 225K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 9.1% of those searches ended in a purchase. Searches in the last 90 days moved +5.6% against the 90 days before. Searches, conversion and average price together put the market at an estimated $434K a year.
- Searches, last 12 months
- 225K
- Growth, 90 days vs prior 90
- +5.6%
- Conversion, latest week
- 9.1%
- Market size, estimated
- $434Ka year
- Peak month
- April1.4× the quietest month
- Top search term
- seam sealer automotive69K searches a year
02 · Price
A sale here is worth $21.12.
Listings sell for $21.12 on average, from $8.29 to $46.44. Amazon reports units sold in ranges. This niche sold 20K to 25K a year. The average listing sells 750 to 1,000 of them. At $21.12 that is $16K to $21K a year per listing.
- Average price
- $21.12inside the $15 to $100 sweet spot
- Price range
- $8.29–$46.44
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 20K–25K
- Units per listing a year
- 750–1,000
- Revenue per listing a year
- $16K–$21K
- Returns
- 1.4%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is low.
89% 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 #154 within Fillers, Adhesives & Sealants. It carries 1,097 reviews at 4.56 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 89%
- Prime listings
- 100%
- Out of stock, average day
- 0.0%
- Average rank
- #154in Fillers, Adhesives & Sealants
- Average rating
- 4.56 starsAmazon United States average 4.42 stars
- Average reviews
- 1,097per listing
- Listings tracked
- 18
04 · Newcomers
1 of last year's 1 launches cleared the first-year sales bar.
1 products launched here in the last 12 months. 1 of them cleared the first-year sales bar, our mark for a successful launch. The brands on the shelf have sold for 82 months on average, so the names here are established.
- Launched, last 12 months
- 1
- Successful launches
- 1Amazon's first-year sales bar
- Average brand age
- 82 months
Products
Top Seam Sealer 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 8, 2026. The live listing can differ.
Top sellers
by estimated 90-day click share![[Black] 2 Pack Professional Automotive Seam Sealer Paintable Quick-Set Polyurethane Auto Body Seam Sealer for Metal Surfaces of Cars Trucks Etc Includes Gloves & Tip - Black RV Roof Sealant](https://m.media-amazon.com/images/I/51NCd5vhpIL.jpg)
[Black] 2 Pack Professional Automotive Seam Sealer Paintable Quick-Set Polyurethane Auto Body Seam Sealer for Metal Surfaces of Cars Trucks Etc Includes Gloves & Tip - Black RV Roof Sealant
- Price
- $27.71
- Rating
- 4.7/5
- Reviews
- 207
- Age
- 1y ago

3M Urethane Seam Sealer 08367 Black Color High Solids Permanently Flexible 310 mL/10.5 fl oz Cartridge
- Price
- $28.48
- Rating
- 4.5/5
- Reviews
- 1,389
- Age
- 12y ago
![[2 Pack] Polyurethane Seam Sealer Automotive Compound Black Paintable Auto Body Seam Sealer Wont Shrink or Crack Flexible Joint Filler for Bare & Painted Metal RV Roof Sealant with Gloves 10oz](https://m.media-amazon.com/images/I/4184QW8Um7L.jpg)
[2 Pack] Polyurethane Seam Sealer Automotive Compound Black Paintable Auto Body Seam Sealer Wont Shrink or Crack Flexible Joint Filler for Bare & Painted Metal RV Roof Sealant with Gloves 10oz
- Price
- $26.37
- Rating
- 4.7/5
- Reviews
- 216
- Age
- 1y ago

Seam Sealer Automotive Black - Paintable Waterproof Quick-Cure Polyurethane Auto Body Sealant for Car Metal Panels Truck Beds RV Roofs - Heavy Duty Kit with Gloves & Applicator 10.5 oz
- Price
- $13.96
- Rating
- 4.7/5
- Reviews
- 47
- Age
- 2y ago
![[Black] Professional Automotive Seam Sealer Paintable Quick-Set Polyurethane Auto Body Seam Sealer for Metal Surfaces of Cars Trucks Etc Includes Gloves & Tip - Black RV Roof Sealant](https://m.media-amazon.com/images/I/41CSSWLKzxL.jpg)
[Black] Professional Automotive Seam Sealer Paintable Quick-Set Polyurethane Auto Body Seam Sealer for Metal Surfaces of Cars Trucks Etc Includes Gloves & Tip - Black RV Roof Sealant
- Price
- $14.95
- Rating
- 4.5/5
- Reviews
- 660
- Age
- 1y ago
Trending
estimated 90-day click momentum
U-Pol Expert Seam Sealer Automotive Sealant & Adhesive Paintable Ideal for Body Panels Windows & Doors White 10.5 oz
- Price
- $9.98
- Rating
- 4.4/5
- Reviews
- 34
- Age
- 5mo ago

GEAR AID Seam Grip WP Waterproof Sealant and Adhesive for Jackets Tents Tarps Rain Gear and Outdoor Fabric Repairs Rips and Seals Seams on Nylon Canvas Vinyl 1 oz Tube Seals 12 ft 1 Pack
- Price
- $9.59
- Rating
- 4.5/5
- Reviews
- 4,644
- Age
- 17y ago
![[2 Pack] Polyurethane Seam Sealer Automotive Compound Black Paintable Auto Body Seam Sealer Wont Shrink or Crack Flexible Joint Filler for Bare & Painted Metal RV Roof Sealant with Gloves 10oz](https://m.media-amazon.com/images/I/4184QW8Um7L.jpg)
[2 Pack] Polyurethane Seam Sealer Automotive Compound Black Paintable Auto Body Seam Sealer Wont Shrink or Crack Flexible Joint Filler for Bare & Painted Metal RV Roof Sealant with Gloves 10oz
- Price
- $26.37
- Rating
- 4.7/5
- Reviews
- 216
- Age
- 1y ago

Polyurethane Seam Sealer Automotive Compound Black Paintable Auto Body Seam Sealer Wont Shrink or Crack Flexible Joint Filler for Bare & Painted Metal RV Roof Sealant with Gloves 10.5 fl oz
- Price
- $14.46
- Rating
- 4.6/5
- Reviews
- 199
- Age
- 1y ago

Seam Sealer Automotive Black - Paintable Waterproof Quick-Cure Polyurethane Auto Body Sealant for Car Metal Panels Truck Beds RV Roofs - Heavy Duty Kit with Gloves & Applicator 10.5 oz
- Price
- $13.96
- Rating
- 4.7/5
- Reviews
- 47
- Age
- 2y ago
Newest
by launch date
U-Pol Expert Seam Sealer Automotive Sealant & Adhesive Paintable Ideal for Body Panels Windows & Doors White 10.5 oz
- Price
- $9.98
- Rating
- 4.4/5
- Reviews
- 34
- Age
- 5mo ago

(3-Pack) Calvana Professional Automotive Seam Sealer Polyurethane Sealant for Metal Surfaces of Cars Trucks and RVs Includes 1 Pair of Gloves and Tip Quick-Drying Paintable Black
- Price
- $30.19
- Rating
- 4.3/5
- Reviews
- 35
- Age
- 1y ago

Seam Sealer Automotive-Professional Grade High Strength Waterproof Adhesive for Truck Marine Auto Body Repair Rust & Leak Prevention-Quick Paintable Sealant for Metal Plastic RV Roof Sealant White
- Price
- $13.55
- Rating
- 4.5/5
- Reviews
- 174
- Age
- 1y ago
![[Black] 2 Pack Professional Automotive Seam Sealer Paintable Quick-Set Polyurethane Auto Body Seam Sealer for Metal Surfaces of Cars Trucks Etc Includes Gloves & Tip - Black RV Roof Sealant](https://m.media-amazon.com/images/I/51NCd5vhpIL.jpg)
[Black] 2 Pack Professional Automotive Seam Sealer Paintable Quick-Set Polyurethane Auto Body Seam Sealer for Metal Surfaces of Cars Trucks Etc Includes Gloves & Tip - Black RV Roof Sealant
- Price
- $27.71
- Rating
- 4.7/5
- Reviews
- 207
- Age
- 1y ago
![[Black] Professional Automotive Seam Sealer Paintable Quick-Set Polyurethane Auto Body Seam Sealer for Metal Surfaces of Cars Trucks Etc Includes Gloves & Tip - Black RV Roof Sealant](https://m.media-amazon.com/images/I/41CSSWLKzxL.jpg)
[Black] Professional Automotive Seam Sealer Paintable Quick-Set Polyurethane Auto Body Seam Sealer for Metal Surfaces of Cars Trucks Etc Includes Gloves & Tip - Black RV Roof Sealant
- Price
- $14.95
- Rating
- 4.5/5
- Reviews
- 660
- Age
- 1y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 60% of clicks. Leaders hold, but buyers still shop past them.
Brands
11 falling
Sellers
84
Est. top-5 brand share
84%
Top 20: 100%
Est. top-5 click share
60%
Top 20: 100%
Open market
12%
- 3M25%
- FORTIVO25%
- Berkland22%
- VICBTZT8%
- U-POL5%
- GEAR AID4%
- Open — no brand owns it (5 brands, 12%)
Demand
Seam Sealer search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.4×
Search terms
Top Seam Sealer search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- seam sealer automotive69K/yr
- seam sealer64K/yr
- automotive seam sealer35K/yr
- 3m seam sealer13K/yr
- auto seam sealer11K/yr
- auto body seam sealer9K/yr
- automotive seam sealer paintable5K/yr
- 3m seam sealer automotive6K/yr
- 3m urethane seam sealer3K/yr
- autobody seam sealer3K/yr
Reviews and returns
What reviews say buyers love and hate about Seam Sealer
We read the reviews and the return reasons for every product selling here.
“Poor adhesion”
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 Seam Sealer 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









