---
title: "Fiberglass Pen — $65K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/industrial-scientific/fiberglass-pen"
last_updated: "2026-08-08T13:27:28.666Z"
locale: en
meta:
description: "Niche score 42/100 · $65K/yr market · 39K searches/yr · $11.18 avg price. Doesn't clear our bar today. Data updated Aug 2026."
"og:description": "Niche score 42/100 · $65K/yr market · 39K searches/yr · $11.18 avg price. Doesn't clear our bar today. Data updated Aug 2026."
"og:title": "Fiberglass Pen — $65K/yr Amazon US Niche (2026) - Flapen"
---
# **fiberglass pen**
**Skip it**
A small market ($65K/yr) — this niche doesn't clear our bar today.
Market size 16Growth 23Conversion 97Competition 18Returns 96Price range 29Avg price 43Brand share 32Review moat 84Quality gap 35
**Conversion**
**Incredible****14.8%**
search→purchase rate — share of searches ending in a sale
**Returns**
**Incredible****0.8%**
return rate — above 5% kills the launch gate
**Review moat**
**Great****324.27**
avg incumbent reviews — the moat a new listing must climb
**Avg price**
**Okay****$11.18**
avg listing price — sweet spot $15–$100
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Brand share**
**Okay****86%**
top-5 brand share — brands hold most of the demand
**Price range**
**Okay****$7.01–$18.29**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Growth**
**Bad****-4.0%**
90-day search growth — must beat 0% to launch
**Competition**
**Bad****78%**
top-5 click share — a locked-up shelf
**Market size**
**Bad****$65K**
$65K/yr · 39K searches
**Signals**[** Low Review Barrier**](https://flapen.com/research/niches?market=us&signal=low_review_barrier "Top brand's reviews < 500")
According to Flapen's Amazon United States niche tracking, fiberglass pen is a $65K/yr Amazon United States market (39K searches/yr). The top 5 brands hold 86% of demand. Verdict: Skip it — 42/100.
Data updated Aug 6, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **fiberglass pen market data**
- **Units sold / yr**
- **4K–5K**
- avg 250–500/product
- **Revenue / yr**
- **$45K–$56K**
- units × avg price
- **Conversion rate**
- **14.8%**
- **Avg BSR**
- **#1,085**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **73%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **51 months**
- **Avg seller age**
- **183 days**
## **Competition & brand share**
The top 5 products capture 78% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**9 **▼falling
**Sellers**
**15**
**Top-5 brand share**
**86%**
Top 20: 100%
**Top-5 click share**
**78%**
Top 20: 100%
**Open market**
**10%**
- TAURISH39% - RAHISH TOOLS20% - Excelta12% - Dura-Gold10% - Pixiss5% - SE4% - Open — no brand owns it (3 brands, 10%)
## **Demand**
Weekly Amazon search volume, last 26 weeks — -4.0% search growth over the last 90 days.
1K600Prime Day '26Feb '26Mar '26Apr '26May '26May '26Jun '26Jul '26
[**Open Trend **](https://flapen.com/research/us/industrial-scientific/fiberglass-pen/trend)
## **Top fiberglass pen search terms**
- **fiberglass pen**19K/yr-8.6%11.4% conv. - **fiberglass scratch pen**7K/yr+54.4%13.2% conv. - **fiberglass brush**6K/yr-9.4%7.0% conv. - **fiberglass pencil**7K/yr-38.2%12.5% conv. [**All search terms **](https://flapen.com/research/us/industrial-scientific/fiberglass-pen/search-terms)
## **Top fiberglass pen 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.
0%10%$6K20%$13K30%$19K40%$26K1101001K10K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 11 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Fiberglass Scratch Brush Pens 3 Pack for Jewelry Watch & Coin Cleaning**TAURISH**$8.88**4.6★237 rev](https://www.amazon.com/dp/B0DT9P7C62) [2**Fiberglass Tip Scratch Brush Pens Fine Tip PCB Metal & Jewelry 3 Pcs**RAHISH TOOLS**$8.78**4.6★41 rev](https://www.amazon.com/dp/B0GVSCQXJ9) [3**Dura-Gold Fiberglass Spot Scratch Brush Pen Tool Pack of 3 - Clean Sand Scuff Surfaces Remove Rust & Corrosion Prep Sanding Auto Paint Scratches for Painting - Polish Metals Cleaning Electronics**Dura-Gold**$10.03**4.2★105 rev](https://www.amazon.com/dp/B0D5FS6CJ5) [4**Excelta 267 Fiberglass Retractable Scratch Pen Brush Refillable Precision**Excelta**$13.20**4.5★177 rev](https://www.amazon.com/dp/B007466MZK) [5**Fiberglass Pen Scratch Brush Set - Jewelry Cleaning Brush with Steel Brass Nylon Fiberglass Tips for Corrosion Remover and Rust Jewelry Electrical Circuit Boards and Auto Body Work**Pixiss**$11.98**4.5★1,080 rev](https://www.amazon.com/dp/B07M94Y12J)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Fiberglass Tip Scratch Brush Pens Fine Tip PCB Metal & Jewelry 3 Pcs**RAHISH TOOLS**$8.78**41 rev4mo ago](https://www.amazon.com/dp/B0GVSCQXJ9) [**4 Piece Fiberglass Scratch Brush Pen Set with Steel Brass Nylon Tips**TAURISH**$9.77**85 rev1y ago](https://www.amazon.com/dp/B0F1KGJ7YC) [**Fiberglass Scratch Brush Pens 3 Pack for Jewelry Watch & Coin Cleaning**TAURISH**$8.88**237 rev1y ago](https://www.amazon.com/dp/B0DT9P7C62) [**Dura-Gold Fiberglass Spot Scratch Brush Pen Tool Pack of 3 - Clean Sand Scuff Surfaces Remove Rust & Corrosion Prep Sanding Auto Paint Scratches for Painting - Polish Metals Cleaning Electronics**Dura-Gold**$10.03**105 rev2y ago](https://www.amazon.com/dp/B0D5FS6CJ5) [**Rosenthal Collection PrecisionGlide Fiberglass Scratch Brush Pen Detail Jewelry Coin & Watch Cleaner - 3 Pack**Rosenthal Collection**$9.76**232 rev3y ago](https://www.amazon.com/dp/B0C3117QRP)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Fiberglass Tip Scratch Brush Pens Fine Tip PCB Metal & Jewelry 3 Pcs**RAHISH TOOLS**$8.78**4.6★**▲ 241%**](https://www.amazon.com/dp/B0GVSCQXJ9) [**Excelta 264 Fiberglass Scratch Brush Long Thin 5.25 Plastic Handle**Excelta**$18.29**4.9★**▲ 126%**](https://www.amazon.com/dp/B00JR8KLOG) [**Dura-Gold Fiberglass Spot Scratch Brush Pen Tool Pack of 3 - Clean Sand Scuff Surfaces Remove Rust & Corrosion Prep Sanding Auto Paint Scratches for Painting - Polish Metals Cleaning Electronics**Dura-Gold**$10.03**4.2★**▲ 73%**](https://www.amazon.com/dp/B0D5FS6CJ5) [**4 Piece Fiberglass Scratch Brush Pen Set with Steel Brass Nylon Tips**TAURISH**$9.77**4.4★**▲ 20%**](https://www.amazon.com/dp/B0F1KGJ7YC) [**Fiberglass Scratch Brush Pens 3 Pack for Jewelry Watch & Coin Cleaning**TAURISH**$8.88**4.6★**— 10%**](https://www.amazon.com/dp/B0DT9P7C62)
**~~View all trending →~~**
## **What buyers say about fiberglass pen**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Ease Of Cleaning**36%
*“Works well use it to clean motor commutators”*
**Quality-Overall**10%
*“The build quality is solid”*
**Value For Money**9%
*“Good Value”*
**Advertised Vs Actual Product**6%
*“Does the job”*
**Ease Of Use**5%
*“easy to use”*
**Rusts/Corrodes**4%
*“Great rust and paint speck remover”*
**Scratch Resistance**3%
*“Surprisingly good scratch pens”*
**Efficiency**3%
*“Work great”*
**Material Quality**3%
*“it works surprisingly well for just being fiberglass brush material”*
**Durability**2%
*“Seem pretty durable”*
### **What buyers complain about **
**Durability**21%
*“if you don't take care of them they will break easily”*
**Material Quality**13%
*“the product need better materials”*
**Functionality-Overall**6%
*“Made stratched worse”*
**Strength**5%
*“break when bent”*
**Rusts/Corrodes**4%
*“I don't recommend using these for rust removal because it fouls the tip”*
**Color**4%
*“Contacts were black after all these years”*
**Locking Mechanism**4%
*“The brush isn't secured properly”*
**Paint Quality**4%
*“Did not remove paint corrosion”*
**Quality-Overall**4%
*“not exceptional”*
**Size-Overall**3%
*“I was a little surprised there wasn't more length there”*
### **Top return reasons **
**Functionality-Overall**22%
**Size-Overall**12%
**Advertised Vs Actual Product**11%
**Scratch Resistance**11%
**Quality-Overall**10%
**Defective Material/Parts**9%
**Material Quality**6%
**Product Condition**6%
**Strength**3%
**Durability**3%
## **Common questions**
- **Is fiberglass pen profitable to sell on Amazon United States?**
- The niche generates $65K/yr across 11 tracked products. 1 of 1 products launched in the last 360 days are still selling. 90-day search growth is -4.0%. Flapen's verdict: Skip it (42/100).
- **How competitive is the fiberglass pen niche?**
- 9 brands and 15 sellers compete. The top 5 products take 78% of clicks and top 5 brands hold 86% of demand.
- **What do buyers complain about in fiberglass pen?**
- Top complaints mined from reviews: Durability, Material Quality, Functionality-Overall. The return rate is 0.8%.
- **What does it cost to enter the fiberglass pen niche?**
- Listings span $7.01–$18.29; the average listing price is $11.18 (sweet spot $15–$100). The average incumbent carries 324 reviews — the moat a new listing must climb.
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