Is liquid flux profitable to sell on Amazon United States?

The niche generates $97K/yr across 10 tracked products. 5 of 6 products launched in the last 360 days are still selling. 90-day search growth is -29.0%. Flapen's verdict: Skip it (38/100).

How competitive is the liquid flux niche?

8 brands and 28 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 91% of demand.

What do buyers complain about in liquid flux?

Top complaints mined from reviews: Adhesion/Stickiness, Functionality-Overall, Ease Of Use. The return rate is 0.7%.

When does demand for liquid flux peak?

Demand peaks in Jan; the busiest month runs 1.8× the quietest.

What does it cost to enter the liquid flux niche?

Listings span $6.06–$13.11; the average listing price is $8.14 (sweet spot $15–$100). The average incumbent carries 868 reviews — the moat a new listing must climb.

liquid flux

Skip it

Prices mostly outside the sweet spot ($6.06–$13.11) — this niche doesn't clear our bar today.

Conversion

Incredible15.6%

search→purchase rate — share of searches ending in a sale

Returns

Incredible0.7%

return rate — above 5% kills the launch gate

Review moat

Good867.9

avg incumbent reviews — the moat a new listing must climb

Quality gap

Okay4.5★

avg incumbent rating — lower means beatable quality

Market size

Bad$97K

$97K/yr · 77K searches

Brand share

Bad91%

top-5 brand share — brand-locked demand

Avg price

Bad$8.14

avg listing price — sweet spot $15–$100

Competition

Bad80%

top-5 click share — a locked-up shelf

Growth

Bad-29.0%

90-day search growth — must beat 0% to launch

Price range

Bad$6.06–$13.11

cheapest to priciest tracked listing — scored on the share inside $15–$100

According to Flapen's Amazon United States niche tracking, liquid flux is a $97K/yr Amazon United States market (77K searches/yr). The top 5 brands hold 91% of demand. Demand peaks in Jan. Verdict: Skip it — 38/100.

Data updated Jul 30, 2026 · scored weekly · How we score niches

liquid flux market data

Units sold / yr: 10K–13K; avg 750–1,000/product
Revenue / yr: $81K–$102K; units × avg price
Conversion rate: 15.6%
Avg BSR: #141
Page quality: 0%
Prime: 100%
Sponsored: 90%
Out of stock: 0.6%
Avg brand age: 72 months
Avg seller age: 183 days

Competition & brand share

The top 5 products capture 80% of clicks — a locked-up shelf that new listings rarely crack.

Brands

8 rising

Sellers

Top-5 brand share

91%

Top 20: 100%

Top-5 click share

80%

Top 20: 100%

Open market

QUIMTECH36%
BEEYUIHF26%
TOWOT14%
wyunway8%
YINENGZC7%
Essmetuin4%
Open — no brand owns it (2 brands, 5%)

Demand & seasonality

Weekly Amazon search volume, last 104 weeks — -29.0% search growth over the last 90 days.

Peak months: Jan · busiest ÷ quietest = 1.8×

Open Trend

Top liquid flux search terms

liquid flux31K/yr -22.6%13.1% conv.
liquid flux soldering10K/yr -32.2%12.7% conv.
liquid solder flux11K/yr -45.1%12.8% conv.
soldering liquid flux3K/yr +14.9%7.3% conv.
soldering flux liquid6K/yr -40.3%10.8% conv.
solder flux liquid5K/yr -41.3%13.2% conv.
liquid soldering flux4K/yr -19.3%11.3% conv.
liquid flux for electronics4K/yr -30.0%17.0% conv.
flux liquid3K/yr -34.7%10.5% conv.

All search terms

Top liquid 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.

Beatable (≤4.3★) Contested Strong incumbent (>4.7★)

All 10 tracked products in this niche — three views at once, no toggling.

Top sellers

by 90-day click share

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$7.044.6★3,266 rev

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$6.894.6★416 rev

TOWOT Liquid Solder Flux No-Clean Soldering Flux for Electronics Lead-Free & Anti-Corrosion High Purity Rosin Solder Flux for PCB Copper Silver 35ml

TOWOT$7.014.4★741 rev

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$9.604.6★416 rev

Liquid Soldering Flux for Electronics No Clean Rosin Flux Dropper Squeeze Bottle 30 mL/1.05 Oz

wyunway$6.724.4★46 rev

Newest

by launch date

TOWOT Liquid Solder Flux 30ml No-Clean RMA Rosin Flux with Precision Dropper Lead-Free Soldering Flux for Electronics PCB Repair Circuit Boards and DIY Projects

TOWOT$6.06741 rev

2mo ago

YINENGZC Liquid Solder Flux 30mL (1.05 Oz) No Clean Liquid Soldering Flux Electrical Rosin Flux Solder Liquid Flux Soldering Fluid in Squeeze Dropper Bottle.

YINENGZC$6.9924 rev

4mo ago

Liquid Soldering Flux for Electronics No Clean Rosin Flux Dropper Squeeze Bottle 30 mL/1.05 Oz

wyunway$6.7246 rev

6mo ago

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$9.60416 rev

8mo ago

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$6.89416 rev

10mo ago

What buyers say about liquid flux

What buyers praise and complain about, mined from review topics.

What buyers love

Quality-Overall19%

“Good quality”

Advertised Vs Actual Product17%

“As Advertised”

Ease Of Use15%

“easy to use”

Value For Money13%

“Good value”

Ease Of Cleaning9%

“cleans up nicely”

Spray/Flow6%

“It flows nicely”

Size-Overall3%

“Fits perfectly”

Functionality-Overall2%

“Easy fluxing things like circuit boards”

Design-Overall2%

“Great quality and Design”

Portability2%

“how reliable it is on small electronics”

What buyers complain about

Adhesion/Stickiness18%

“Just makes everything sticky”

Functionality-Overall12%

“With mixed results”

Ease Of Use10%

“it is difficult to apply with the plunger flopping around”

Quality-Overall7%

“Bottle needs better quality”

Value For Money7%

“It may seem a little expensive”

Heating6%

“Heat from soldering does not change the proprieties”

Spray/Flow4%

“Flux does not flow easily out of plunger you do have to use some force to get it flowing”

Size-Overall4%

“it seems to be a bit bigger”

Thickness4%

“Unfortunately it's extremely thin”

Flammable3%

“seems to burn easily making cleanup harder”

Top return reasons

Functionality-Overall28%

Value For Money13%

Advertised Vs Actual Product12%

Size-Overall8%

Quality-Overall7%

Leak-Proof7%

Adhesion/Stickiness6%

Defective Material/Parts5%

Heating3%

Mechanism Issues2%

Common questions

Is liquid flux profitable to sell on Amazon United States?: The niche generates $97K/yr across 10 tracked products. 5 of 6 products launched in the last 360 days are still selling. 90-day search growth is -29.0%. Flapen's verdict: Skip it (38/100).
How competitive is the liquid flux niche?: 8 brands and 28 sellers compete. The top 5 products take 80% of clicks and top 5 brands hold 91% of demand.
What do buyers complain about in liquid flux?: Top complaints mined from reviews: Adhesion/Stickiness, Functionality-Overall, Ease Of Use. The return rate is 0.7%.
When does demand for liquid flux peak?: Demand peaks in Jan; the busiest month runs 1.8× the quietest.
What does it cost to enter the liquid flux niche?: Listings span $6.06–$13.11; the average listing price is $8.14 (sweet spot $15–$100). The average incumbent carries 868 reviews — the moat a new listing must climb.