duraglass fiberglass filler
Skip itA concentrated shelf (top 5 take 94% of clicks) — this niche doesn't clear our bar today.
Returns
Incredible0.0%return rate — above 5% kills the launch gate
Avg price
Incredible$45.91avg listing price — sweet spot $15–$100
Price range
Incredible$15.03–$87.38cheapest to priciest tracked listing — scored on the share inside $15–$100
Conversion
Great8.6%search→purchase rate — share of searches ending in a sale
Review moat
Good532.14avg incumbent reviews — the moat a new listing must climb
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Growth
Bad-7.2%90-day search growth — must beat 0% to launch
Market size
Bad$64K$64K/yr · 16K searches
Brand share
Bad97%top-5 brand share — brand-locked demand
Competition
Bad94%top-5 click share — a locked-up shelf
According to Flapen's Amazon United States niche tracking, duraglass fiberglass filler is a $64K/yr Amazon United States market (16K searches/yr). The top 5 brands hold 97% of demand. Verdict: Skip it — 41/100.
Data updated Jul 8, 2026 · scored weekly · How we score niches
duraglass fiberglass filler market data
- Units sold / yr
- 1K–1K
- avg 100–250/product
- Revenue / yr
- $46K–$57K
- units × avg price
- Conversion rate
- 8.6%
- Avg BSR
- #72
- Page quality
- 0%
- Prime
- 57%
- Sponsored
- 86%
- Out of stock
- 0.0%
- Avg brand age
- 74 months
- Avg seller age
- 184 days
Competition & brand share
The top 5 products capture 94% of clicks — a locked-up shelf that new listings rarely crack.Brands
6 falling
Sellers
59
Top-5 brand share
97%
Top 20: 100%
Top-5 click share
94%
Top 20: 100%
Open market
0%
- U.S. Chemical & Plastics73%
- Evercoat10%
- J-B Weld7%
- PLASTILINUM3%
- bondo3%
- LAUCO3%
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -7.2% search growth over the last 90 days.No pronounced peak months · busiest ÷ quietest = 1.4×
Top duraglass fiberglass filler products on Amazon
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 7 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
DURAGLASS 25.6 U.S. FL OZ Part Number 24035
U.S. Chemical & Plastics$38.584.7★362 rev
Duraglas Fiberglass Filled Filler 1 Gallon
U.S. Chemical & Plastics$60.464.7★813 rev
Evercoat Everglass Short Strand Fiberglass Reinforced Filler - Waterproof Filler - 32 Fl Oz
Evercoat$42.724.5★501 rev
J-B Weld Quart - Fiberglass Short-Strained Filler
J-B Weld$23.944.7★267 rev
PLASTILINUM U. S. Chemical & Plastics Duraglas Fiberglass Filled Filler Gallon (USC-24030)
PLASTILINUM$87.384.4★23 rev
Newest
by launch dateJ-B Weld Quart - Fiberglass Short-Strained Filler
J-B Weld$23.94267 rev
LAUCO Ultra Fiber Sandable Fiberglass Filler Bridges Holes Water Resistant Lightweight for Fiberglass Steel Plastics Base Color of Yellow-Green 3 Liters
LAUCO$53.28100 rev
PLASTILINUM U. S. Chemical & Plastics Duraglas Fiberglass Filled Filler Gallon (USC-24030)
PLASTILINUM$87.3823 rev
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$15.031,659 rev
DURAGLASS 25.6 U.S. FL OZ Part Number 24035
U.S. Chemical & Plastics$38.58362 rev
Trending
90-day click momentumEvercoat Everglass Short Strand Fiberglass Reinforced Filler - Waterproof Filler - 32 Fl Oz
Evercoat$42.724.5★
DURAGLASS 25.6 U.S. FL OZ Part Number 24035
U.S. Chemical & Plastics$38.584.7★
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★
J-B Weld Quart - Fiberglass Short-Strained Filler
J-B Weld$23.944.7★
Duraglas Fiberglass Filled Filler 1 Gallon
U.S. Chemical & Plastics$60.464.7★
What buyers say about duraglass fiberglass filler
What buyers praise and complain about, mined from review topics.What buyers love
“Great Product”
“Worked good for what I needed”
“This product is easy to use”
“worth every penny”
“Good small kit for small repairs”
“does everything it should do”
“it will set up on you in just minutes”
“Love that it turns purple when mixing”
“didn't make to much of a mess”
“The waterproof feature is a bonus since i dont have to worry about moisture later on”
What buyers complain about
“You'd think they would provide a off-color hardener”
“After reading detailed instructions determined wouldnt work for my project”
“Deceptive Ad & Non Returnable”
“werks aight”
“Smaller amount than described”
“Too Expensive”
Common questions
- Is duraglass fiberglass filler profitable to sell on Amazon United States?
- The niche generates $64K/yr across 7 tracked products. 90-day search growth is -7.2%. Flapen's verdict: Skip it (41/100).
- How competitive is the duraglass fiberglass filler niche?
- 6 brands and 59 sellers compete. The top 5 products take 94% of clicks and top 5 brands hold 97% of demand.
- What do buyers complain about in duraglass fiberglass filler?
- Top complaints mined from reviews: Color, Instructions/User Manual/Troubleshooting, Advertised Vs Actual Product. The return rate is 0.0%.
- When does demand for duraglass fiberglass filler peak?
- Demand is steady year-round — the busiest month runs 1.4× the quietest.
- What does it cost to enter the duraglass fiberglass filler niche?
- Listings span $15.03–$87.38; the average listing price is $45.91 (sweet spot $15–$100). The average incumbent carries 532 reviews — the moat a new listing must climb.