fiberglass filler
Skip it46/100a small market ($277K/yr) — fiberglass filler doesn't clear our bar today.
Market/yr
$277K
Growth (1y)
+162.3%
Products
15
Brands
10
was 6 a year ago
Sellers
86
Price range
$7.31–$60.46
Returns
0.3%
Rating
4.6★
Skip it
Scored 46/100 across market size, growth, competition, quality gap, and returns.
Demand
Weekly Amazon search volume, last 104 weeks — +162.3% year over year.Seasonality
Monthly demand index across the year — 1.00 is average.Peak months: May · busiest ÷ quietest = 1.8×
Competition
- bondo28%
- 3M19%
- J-B Weld14%
- U.S. Chemical & Plastics12%
- Evercoat9%
- TotalBoat5%
- Other (4 brands)13%
The top 5 products take 68% of clicks — established leaders, but buyers still shop beyond them. 10 brands and 86 sellers compete here.
Brands
10 rising
was 6 a year ago
Sellers
86
Top 5 brand share
82%
Bondo Glass Short Strand Reinforced Fiberglass Filler Stage 2 2.56 Oz Filler and 1 Oz Cream Hardener
Everocat Kitty Hair Long Strand Fiberglass Reinforced Filler for Fiberglass & Sheet Metal - 32 Fl Oz
Product shelf
All 15 tracked products in this niche.
3M Bondo Short Strand Fiberglass Reinforced Filler 1.37 LB (621 g) with Bondo Cream Hardener 0.5 oz (14g) Repair Holes Up To 0.5 IN Waterproof (SS-PT-ES)
bondo
$15.034.6★1,659 reviews
J-B Weld Quart - Fiberglass Short-Strained Filler
J-B Weld
$23.944.7★267 reviews
Bondo Bondo-Hair Long Strand Fiberglass Reinforced Filler 00762 1 Quart
3M
$16.254.6★1,147 reviews
Bondo Glass Short Strand Reinforced Fiberglass Filler Stage 2 2.56 Oz Filler and 1 Oz Cream Hardener
3M
$21.254.7★2,330 reviews
Duraglas Fiberglass Filled Filler 1 Gallon
U.S. Chemical & Plastics
$60.464.7★813 reviews
DURAGLASS 25.6 U.S. FL OZ Part Number 24035
U.S. Chemical & Plastics
$38.584.7★362 reviews
Evercoat Everglass Short Strand Fiberglass Reinforced Filler - Waterproof Filler - 32 Fl Oz
Evercoat
$42.724.5★501 reviews
LAUCO Ultra Fiber Sandable Fiberglass Filler Bridges Holes Water Resistant Lightweight for Fiberglass Steel Plastics Base Color of Yellow-Green 3 Liters
LAUCO
$53.284.7★100 reviews
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Great product as”
“Worked good for what I needed”
“This product is easy to use”
“great price”
“Good small kit for small repairs”
“workes as advertised”
“Worked great and lasting not falling apart”
“This is a good quality waterproof body filler with long strands of fiberglass strands to make it much stronger”
“it will set up on you in just minutes”
“didn't make to much of a mess”
What buyers complain about
“Unfortunately, the one I received is hard as a rock with almost no flex at all”
“Deceptive Ad & Non Returnable”
“Hard as a rock”
“Very brittle”
“Complete Garbage”
“After reading detailed instructions determined wouldnt work for my project”
“You'd think they would provide a off-color hardener”
“the second batch I used today does not have the same smooth consistency as the first”
“Leaking”
“Wouldnt fully cure after 4 days”
Top return reasons
- Flexibility16%
- Size-Overall15%
- Material Quality12%
- Functionality-Overall11%
- Defective Material/Parts9%
- Value For Money7%
- Advertised Vs Actual Product6%
- Strength6%
- Quality-Overall4%
- Compatibility-Overall3%