---
title: "Flux — $4.0M/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/tools-home-improvement/flux"
last_updated: "2026-08-09T04:00:51.070Z"
locale: en
meta:
description: "Niche score 60/100 · $4.0M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:description": "Niche score 60/100 · $4.0M/yr market. A failed launch gate (market size, growth, or returns) keeps it on the watch list. Data updated Jul 2026."
"og:title": "Flux — $4.0M/yr Amazon US Niche (2026) - Flapen"
---
# **flux**
**Worth a look**
Shows a $4.0M/yr market, but a failed launch gate (market size, growth, or returns) keeps it on the watch list.
Market size 97Growth 20Conversion 96Competition 33Returns 97Price range 72Avg price 95Brand share 55Review moat 39Quality gap 28
**Market size**
**Incredible****$4.0M**
$4.0M/yr · 936K searches
**Returns**
**Incredible****0.7%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****13.1%**
search→purchase rate — share of searches ending in a sale
**Avg price**
**Incredible****$32.86**
avg listing price — sweet spot $15–$100
**Price range**
**Good****$3.62–$121.68**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Brand share**
**Good****72%**
top-5 brand share — brands hold most of the demand
**Review moat**
**Okay****2,569.7**
avg incumbent reviews — the moat a new listing must climb
**Competition**
**Okay****65%**
top-5 click share — leaders hold, buyers still browse
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Growth**
**Bad****-10.9%**
90-day search growth — must beat 0% to launch
**Signals**[** No Dominant Brand**](https://flapen.com/research/niches?market=us&signal=no_dominant_brand "Top brand's click share < 20%")
According to Flapen's Amazon United States niche tracking, flux is a $4.0M/yr Amazon United States market (936K searches/yr). The top 5 brands hold 72% of demand. Verdict: Worth a look — 60/100.
Data updated Jul 30, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **flux market data**
- **Units sold / yr**
- **100K–125K**
- avg 6,000–8,000/product
- **Revenue / yr**
- **$3.3M–$4.1M**
- units × avg price
- **Conversion rate**
- **13.1%**
- **Avg BSR**
- **#3,377**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **91%**
- **Out of stock**
- **1.7%**
- **Avg brand age**
- **60 months**
- **Avg seller age**
- **170 days**
## **Competition & brand share**
The top 5 products take 65% of clicks — established leaders, but buyers still shop beyond them.
**Brands**
**14 **▲rising
**Sellers**
**45**
**Top-5 brand share**
**72%**
Top 20: 100%
**Top-5 click share**
**65%**
Top 20: 97%
**Open market**
**20%**
- SRA Soldering Products19% - QUIMTECH17% - Essmetuin14% - BEEYUIHF13% - Romeda9% - Flux Footwear8%
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -10.9% search growth over the last 90 days.
20K15KPrime Day '25Spike '25Spike '26 seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/us/tools-home-improvement/flux/trend)
## **Top flux search terms**
- **flux**293K/yr-6.1%10.3% conv. - **solder flux**211K/yr-17.4%14.9% conv. - **soldering flux**172K/yr-13.8%11.5% conv. - **flux paste**75K/yr-16.6%10.1% conv. - **no clean flux**20K/yr+2.4%9.9% conv. - **rosin flux**22K/yr-16.2%12.2% conv. - **solder flux paste**21K/yr-8.5%11.9% conv. - **soldering flux paste**19K/yr-6.7%10.8% conv. - **flux for soldering electronics**6K/yr+171.5%14.8% conv. - **flux for soldering**16K/yr-23.4%9.0% conv. [**All search terms **](https://flapen.com/research/us/tools-home-improvement/flux/search-terms)
## **Top flux 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%5%$202K10%$404K15%$606K20%$808K101001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 23 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**SRA Solder 135 Rosin Paste Soldering Flux For Electronics No Clean Flux Made for Lead and Lead-Free Solder Circuit Boards and Copper Electrical Wire - Safe Clean Residues with No Goopy Mess (2oz Jar)**SRA Soldering Products**$8.57**4.7★18,214 rev](https://www.amazon.com/dp/B008ZIV85A) [2**Liquid Solder Flux Dropper (30 ml/1 Oz.) I RMA Liquid Solder Flux I Soldering Flux I Electrical Solder I No Clean Liquid Flux I Rosin Flux I Soldering Flux for Electronics I Lead Free Liquid Solder I**QUIMTECH**$7.04**4.6★3,266 rev](https://www.amazon.com/dp/B0CN29BZKV) [3**BEEYUIHF Liquid Solder Flux Dropper Liquid Soldering Flux No Clean Liquid Flux Electrical Liquid Rosin Flux Solder Liquid Flux Soldering Squeeze Bottle (30 mL/1.05Oz.)**BEEYUIHF**$6.89**4.6★416 rev](https://www.amazon.com/dp/B0FR3SKG1W) [4**Desoldering Wick and Soldering Flux Paste for Electronics Repair No Clean Flux(10CC) Solder Removal Kit**Essmetuin**$9.93**4.7★1,241 rev](https://www.amazon.com/dp/B0D3H8NZLP) [5**2 Jar Solder Flux Flux for Soldering Rosin Soldering Flux Paste for Lead-Free Electronics Soldering and Soldering DIY (1.2oz/35g in a Jar)**Romeda**$6.07**4.6★5,915 rev](https://www.amazon.com/dp/B08MVXW4RY)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**No Clean Solder Flux Paste for Electronics Repair Lead-Free Rosin Soldering Flux 4 Pack 10cc Syringe Flux Paste for PCB SMD SMT Desoldering DIY Soldering Circuit Board Maintenance and Rework**Tozersis**$13.49**53 rev4mo ago](https://www.amazon.com/dp/B0GGQNNF98) [**Solder Flux Paste & Desoldering Wick: No Clean Rosin Handy Flux Syringe + Solder Wick Braid Circuit Board Electrical Repair Soldering Accessories Kit Electronics Soldering Supplies & Desoldering Tool**Crivon**$11.83**62 rev4mo ago](https://www.amazon.com/dp/B0GHRTMQMD) [**BEEYUIHF 2 Jar Rosin Solder Flux Flux for Soldering for SMD BGA LED PCB IC CPU Electronic Repair & Soldering (1.41oz/40g in a Jar)**BEEYUIHF**$5.77**24 rev6mo ago](https://www.amazon.com/dp/B0GH822M7F) [**BEEYUIHF Liquid Solder Flux Dropper 60mL Liquid Soldering Flux No Clean Liquid Flux Electrical Liquid Rosin Flux Solder Liquid Flux Soldering Squeeze Bottle (30 mL x 2)**BEEYUIHF**$9.60**416 rev8mo ago](https://www.amazon.com/dp/B0G2G6WFPZ) [**FLUX FOOTWEAR Adapt Knit Trainer Wide Toe Box Shoe with Earth-Link Grounding Zero-Drop Sole Breathable Knit Upper & Machine Washable Perfect for Daily Wear & Light Training**Flux Footwear**$114.19**136 rev10mo ago](https://www.amazon.com/dp/B0FRHK6VGB)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Flux Footwear Adapt Knit Trainer Wide Toe Box Shoe with Earth-Link Grounding Zero-Drop Sole Breathable Knit Upper & Machine Washable Perfect for Daily Wear & Light Training**Flux Footwear**$112.52**4.4★**▲ 279%**](https://www.amazon.com/dp/B0FRHMGJQD) [**BEEYUIHF 2 Jar Rosin Solder Flux Flux for Soldering for SMD BGA LED PCB IC CPU Electronic Repair & Soldering (1.41oz/40g in a Jar)**BEEYUIHF**$5.77**4.9★**▲ 273%**](https://www.amazon.com/dp/B0GH822M7F) [**FLUX FOOTWEAR Adapt Graphene RR Wide Toe Box Running Shoes for Men & Women | Barefoot Feel | Zero Drop | Ripstop Upper | Graphene Grip for Road & Treadmill**Flux Footwear**$121.68**4.1★**▲ 269%**](https://www.amazon.com/dp/B0FFTQCW8N) [**FLUX FOOTWEAR Adapt Knit Trainer Wide Toe Box Shoe with Earth-Link Grounding Zero-Drop Sole Breathable Knit Upper & Machine Washable Perfect for Daily Wear & Light Training**Flux Footwear**$114.19**4.4★**▲ 217%**](https://www.amazon.com/dp/B0FRHK6VGB) [**Flux Footwear Adapt Knit Trainer Wide Toe Box Shoe with Earth-Link Grounding Zero-Drop Sole Breathable Knit Upper & Machine Washable Perfect for Daily Wear & Light Training**Flux Footwear**$117.82**4.4★**▲ 208%**](https://www.amazon.com/dp/B0FRG32W5M)
**~~View all trending →~~**
## **What buyers say about flux**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Quality-Overall**20%
*“Best quality”*
**Advertised Vs Actual Product**19%
*“As Advertised”*
**Value For Money**16%
*“Excellent value”*
**Ease Of Use**13%
*“Works great easy to use”*
**Ease Of Cleaning**7%
*“was easy to clean up”*
**Spray/Flow**5%
*“It flows smooth”*
**Size-Overall**3%
*“Convenient sized jars”*
**Functionality-Overall**2%
*“Easy fluxing things like circuit boards”*
**Portability**1%
*“Definitely versatile in what it can be used in or on very easy to use and assemble”*
**Heating**1%
*“No scorching or cloudy when heated”*
### **What buyers complain about **
**Adhesion/Stickiness**13%
*“Sticky”*
**Functionality-Overall**13%
*“Just never worked”*
**Size-Overall**9%
*“Small container”*
**Quality-Overall**7%
*“Bottle needs better quality”*
**Value For Money**6%
*“It may seem a little expensive”*
**Ease Of Use**6%
*“Not easy to get just a little bit to come out”*
**Thickness**3%
*“the wick itself is maybe 1/8 wide aand paper thin”*
**Spray/Flow**3%
*“Never could get a good flow using this flux”*
**Instructions/User Manual/Troubleshooting**3%
*“No instructions”*
**Flammable**2%
*“seems to burn easily making cleanup harder”*
### **Top return reasons **
**Size-Overall**17%
**Functionality-Overall**15%
**Feet Fit**13%
**Value For Money**10%
**Advertised Vs Actual Product**8%
**Quality-Overall**5%
**Length**5%
**Defective Material/Parts**5%
**Width**3%
**Adhesion/Stickiness**3%
## **Common questions**
- **Is flux profitable to sell on Amazon United States?**
- The niche generates $4.0M/yr across 23 tracked products. 8 of 10 products launched in the last 360 days are still selling. 90-day search growth is -10.9%. Flapen's verdict: Worth a look (60/100).
- **How competitive is the flux niche?**
- 14 brands and 45 sellers compete. The top 5 products take 65% of clicks and top 5 brands hold 72% of demand.
- **What do buyers complain about in flux?**
- Top complaints mined from reviews: Adhesion/Stickiness, Functionality-Overall, Size-Overall. The return rate is 0.7%.
- **When does demand for flux peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the flux niche?**
- Listings span $3.62–$121.68; the average listing price is $32.86 (sweet spot $15–$100). The average incumbent carries 2,570 reviews — the moat a new listing must climb.
## **Related niches in Tools & Home Improvement**
- 73 [**solar outdoor lights**](https://flapen.com/research/us/tools-home-improvement/solar-outdoor-lights)$30.2M/yr+39.8%**Launch it**- 73 [**shower lamp**](https://flapen.com/research/us/tools-home-improvement/shower-lamp)$2.8M/yr+30.2%**Launch it**- 73 [**solar flowers**](https://flapen.com/research/us/tools-home-improvement/solar-flowers)$607K/yr+52.0%**Worth a look**- 73 [**american flag lights**](https://flapen.com/research/us/tools-home-improvement/american-flag-lights)$465K/yr+736.5%**Worth a look**- 73 [**solar fairy lights**](https://flapen.com/research/us/tools-home-improvement/solar-fairy-lights)$3.5M/yr+64.6%**Launch it**- 73 [**solar watering can with cascading lights**](https://flapen.com/research/us/tools-home-improvement/solar-watering-can-with-cascading-lights)$304K/yr+124.3%**Worth a look**[**All Tools & Home Improvement niches **](https://flapen.com/research/us/tools-home-improvement)