window crack sealer
Skip it38/100a small market ($52K/yr) — window crack sealer doesn't clear our bar today.
Market/yr
$52K
Growth (1y)
+108.2%
Products
17
Brands
8
was 4 a year ago
Sellers
71
Price range
$5.20–$25.92
Returns
0.8%
Rating
4.4★
Skip it
Scored 38/100 across market size, growth, competition, quality gap, and returns.
Demand
Weekly Amazon search volume, last 96 weeks — +108.2% year over year.Seasonality
Monthly demand index across the year — 1.00 is average.No pronounced peak months · busiest ÷ quietest = 1.3×
Competition
- Permatex55%
- Griot's Garage35%
- 303 Products2%
- CERAKOTE2%
- CARPRO2%
- DZCKTFYGRT1%
- Other (2 brands)3%
The top 5 products capture 78% of clicks — a locked-up shelf that new listings rarely crack. 8 brands and 71 sellers compete here.
Brands
8 rising
was 4 a year ago
Sellers
71
Top 5 brand share
96%
Product shelf
All 17 tracked products in this niche.
Permatex 81730 1.5 Oz Flowable Silicone Windshield & Glass Sealer
Permatex
$6.994.7★343 reviews
Griots Garage Ceramic Glass Coating Kit for Cars SiO2 Hydrophobic Sealant for Windshields and Auto Detailing Includes Applicator Pad and Microfiber Towels 10867
Griot's Garage
$22.004.4★217 reviews
Permatex 81730 Flowable Silicone Windshield and Glass Sealer 1.5 oz.
Permatex
$7.654.3★5,865 reviews
Griots Garage Glass Sealant Coating for Cars Trucks SUVs and More for Water Spots 11033 8oz
Griot's Garage
$13.394.4★1,734 reviews
Permatex 81730 Flowable Silicone Windshield Glass Sealer 1.5 oz. (2 Pack)
Permatex
$13.424.4★369 reviews
Permatex 81158 Black Silicone Adhesive Sealant 3 oz. Tube Pack of 1
Permatex
$5.794.6★11,710 reviews
Permatex 4-Pack Flowable Silicone Windshield & Glass Sealer 1.5 oz Clear Waterproof
Permatex
$20.514.6★186 reviews
303 Products Touchless Sealant - SiO2 Water Activated Paint & Glass Protection - Spray On Rinse Off - Lasts 2X Longer Than W- Deep Wet Shine 32 fl. oz. (30394CSR)
303 Products
$25.834.6★1,872 reviews
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“excellent product with reasonable cost”
“Cleans up pretty easy too for any mess you make”
“Does the job”
“Worked as advertised”
“Easy to Use”
“It gives shine”
“Best value”
“its holding up well”
“has great adhesion”
“it has not leaked since”
What buyers complain about
“Does not work as described”
“An expensive WASTE”
“hard to squeeze”
“Doesn't last anywhere near 12 months”
“Poor quality product”
“GREAT ADHESIVE, BAD CONTAINER”
“I didnt think it did any better of a job cleaning”
“stains on them”
“VERY Misleading”
“most bugs that hit the windshield come off easily with the wipers”
Top return reasons
- Functionality-Overall31%
- Advertised Vs Actual Product17%
- Value For Money7%
- Compatibility-Overall6%
- Leak-Proof6%
- Adhesion/Stickiness5%
- Size-Overall3%
- Stain Resistance2%
- Brightness/Shine/Glow2%
- Color2%