Window Crack Sealer
FailThe top 5 brands take 96% of clicks, so Window Crack Sealer is a Fail.
- Flapen Score
- 45 / 100Ranks 4,788 of 7,287 Automotive niches · −4 vs the category median of 4945
- Market size
- $52K/yr38K searches / yr
- 90-day growth
- +20.9%search demand this quarter
- Competition
- 78%top-5 click share · 8 brands · 71 sellers
Flapen Score
Window Crack Sealer against its category
The dotted line is the Automotive average. Past it, Window Crack Sealer is stronger. Inside it, weaker.
Market
The Window Crack Sealer market on Amazon at a glance
Shoppers on Amazon United States searched for Window Crack Sealer 38K times last year and spent an estimated $52K. The top 5 brands take 96% of clicks. Flapen scores it 45 out of 100, a Fail.
01 · Demand
An estimated 10.4% of those searches ended in a purchase.
Shoppers searched for this 38K times in the last 12 months. That counts every search on Amazon United States for this niche's terms. An estimated 10.4% of those searches ended in a purchase. Searches in the last 90 days moved +20.9% against the 90 days before. Searches, conversion and average price together put the market at an estimated $52K a year.
- Searches, last 12 months
- 38K
- Growth, 90 days vs prior 90
- +20.9%
- Conversion, latest week
- 10.4%
- Market size, estimated
- $52Ka year
- Peak month
- August1.3× the quietest month
- Top search term
- glass sealant15K searches a year
02 · Price
A sale here is worth $13.17.
Listings sell for $13.17 on average, from $5.20 to $25.92. Amazon reports units sold in ranges. This niche sold 4K to 5K a year. The average listing sells 250 to 500 of them. At $13.17 that is $3K to $7K a year per listing.
- Average price
- $13.17under the $15 to $100 sweet spot
- Price range
- $5.20–$25.92
- Amazon United States median price
- $24.38across 115,062 niches
- Units sold a year
- 4K–5K
- Units per listing a year
- 250–500
- Revenue per listing a year
- $3K–$7K
- Returns
- 0.8%of orders · Amazon United States median 2.1%
03 · Entry bar
The bar here is reviews.
71% of listings pay for placement with sponsored ads. 88% ship with Prime. On an average day, 0.0% of listings are out of stock. The average listing ranks #110 within Fillers, Adhesives & Sealants. It carries 3,606 reviews at 4.40 stars, so a new listing needs social proof before a better product.
- Sponsored listings
- 71%
- Prime listings
- 88%
- Out of stock, average day
- 0.0%
- Average rank
- #110in Fillers, Adhesives & Sealants
- Average rating
- 4.40 starsAmazon United States average 4.42 stars
- Average reviews
- 3,606per listing
- Listings tracked
- 17
04 · Newcomers
Brands here are established.
The brands on the shelf have sold for 68 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
- 68 months
Products
Top Window Crack 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
Permatex 81730 1.5 Oz Flowable Silicone Windshield & Glass Sealer
- Price
- $6.99
- Rating
- 4.7/5
- Reviews
- 343
- Age
- 9y ago

Griots Garage Ceramic Glass Coating Kit for Cars SiO2 Hydrophobic Sealant for Windshields and Auto Detailing Includes Applicator Pad and Microfiber Towels 10867
- Price
- $22.00
- Rating
- 4.4/5
- Reviews
- 217
- Age
- 1y ago

Permatex 81730 Flowable Silicone Windshield and Glass Sealer 1.5 oz.
- Price
- $7.65
- Rating
- 4.3/5
- Reviews
- 5,865
- Age
- 18y ago

Griots Garage Glass Sealant Coating for Cars Trucks SUVs and More for Water Spots 11033 8oz
- Price
- $13.39
- Rating
- 4.4/5
- Reviews
- 1,734
- Age
- 13y ago

Permatex 81730 Flowable Silicone Windshield Glass Sealer 1.5 oz. (2 Pack)
- Price
- $13.42
- Rating
- 4.4/5
- Reviews
- 369
- Age
- 7y ago
Trending
estimated 90-day click momentum
DZCKTFYGRT Windshield Crack Repair Kit 2025 New Premium Windshield Repair Kit Quick Glass Repair Liquid for Windshields Windows Mirrors and All Glass Crack Types2pcs
- Price
- $11.82
- Rating
- 3.1/5
- Reviews
- 191
- Age
- 1y ago

CARPRO FlyBy30 Glass Sealant: Professional Windshield Window & Glass Coating - Rain Shower Water Repellent & Car Glass Treatment - 20mL
- Price
- $25.92
- Rating
- 4.6/5
- Reviews
- 7
- Age
- 2y ago

Permatex 81730 1.5 Oz Flowable Silicone Windshield & Glass Sealer
- Price
- $6.99
- Rating
- 4.7/5
- Reviews
- 343
- Age
- 9y ago

Mod Podge Dishwasher Safe Waterbased Sealer Glue and Finish (8-Ounce) CS15059 Gloss 8 Ounce
- Price
- $5.20
- Rating
- 4.7/5
- Reviews
- 26,131
- Age
- 14y ago

Permatex 81158 Black Silicone Adhesive Sealant 3 oz. Tube Pack of 1
- Price
- $5.79
- Rating
- 4.6/5
- Reviews
- 11,710
- Age
- 22y ago
Newest
by launch date
DZCKTFYGRT Windshield Crack Repair Kit 2025 New Premium Windshield Repair Kit Quick Glass Repair Liquid for Windshields Windows Mirrors and All Glass Crack Types2pcs
- Price
- $11.82
- Rating
- 3.1/5
- Reviews
- 191
- Age
- 1y ago

Griots Garage Ceramic Glass Coating Kit for Cars SiO2 Hydrophobic Sealant for Windshields and Auto Detailing Includes Applicator Pad and Microfiber Towels 10867
- Price
- $22.00
- Rating
- 4.4/5
- Reviews
- 217
- Age
- 1y ago

CERAKOTE Ceramic Glass Coat Protectant - Hydrophobic Automotive Rain Repellant Long-Lasting and Durable Ceramic Coating Quick and Easy Application
- Price
- $9.69
- Rating
- 4.4/5
- Reviews
- 1,760
- Age
- 2y ago

CARPRO FlyBy30 Glass Sealant: Professional Windshield Window & Glass Coating - Rain Shower Water Repellent & Car Glass Treatment - 20mL
- Price
- $25.92
- Rating
- 4.6/5
- Reviews
- 7
- Age
- 2y ago

Griots Garage Foaming Glass Cleaner Spray for Car Window Windshield Mirror Tint Safe No Streak Dye and Ammonia-Free Formula 22 Oz 10891
- Price
- $8.34
- Rating
- 4.4/5
- Reviews
- 212
- Age
- 2y ago
Competition
Competition: brands, sellers & click share
The top 5 products take an estimated 78% of clicks. A locked shelf that new listings rarely crack.
Brands
8 rising
Sellers
71
Est. top-5 brand share
96%
Top 20: 100%
Est. top-5 click share
78%
Top 20: 100%
Open market
3%
- Permatex55%
- Griot's Garage35%
- 303 Products2%
- CERAKOTE2%
- CARPRO2%
- DZCKTFYGRT1%
- Open — no brand owns it (2 brands, 3%)
Demand
Window Crack Sealer search demand
Weekly searches over the year, seasonality beneath. Pick a range.
No pronounced peak months · busiest ÷ quietest = 1.3×
Search terms
Top Window Crack Sealer search terms shoppers use
The exact words shoppers type, with estimated yearly volume, growth, and conversion.
- glass sealant15K/yr
- griots glass sealant7K/yr
- flowable silicone4K/yr
- permatex windshield sealant3K/yr
- griots glass3K/yr
- glass sealer4K/yr
- permatex windshield and glass sealant2K/yr
Reviews and returns
What reviews say buyers love and hate about Window Crack Sealer
We read the reviews and the return reasons for every product selling here.
“Does not work as described”
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.
16 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 Window Crack 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









