stained glass flux
Skip itPrices mostly outside the sweet spot ($7.93–$13.90) — this niche doesn't clear our bar today.
Returns
Incredible0.7%return rate — above 6% kills the launch gate
Conversion
Great10.1%search→purchase rate — share of searches ending in a sale
Review moat
Good563.33avg incumbent reviews — the moat a new listing must climb
Quality gap
Good4.4★avg incumbent rating — lower means beatable quality
Avg price
Okay$11.59avg listing price — sweet spot $15–$100
Growth
Bad-13.0%90-day search growth — must beat 0% to launch
Brand share
Bad96%top-5 brand share — brand-locked demand
Market size
Bad$35K$35K/yr · 30K searches
Competition
Bad89%top-5 click share — a locked-up shelf
Price range
Bad$7.93–$13.90cheapest to priciest tracked listing — scored on the share inside $15–$100
Competition
The top 5 products capture 89% of clicks — a locked-up shelf that new listings rarely crack.Brands
7 falling
Sellers
50
Top-5 brand share
96%
Open market
2%
- Novacan Industries39%
- WINUSD28%
- IMPRESA20%
- Rainbow Art Glass5%
- Amerway3%
- OverZyn2%
- Open — no brand owns it (1 brand, 2%)
Product shelf
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
All 9 tracked products in this niche — three views at once, no toggling.
Top sellers
by 90-day click share
Novacan Old Masters Flux - 8 Oz
Novacan Industries$13.134.7★1,556 rev
IMPRESA Liquid Zinc Flux for Stained Glass Supplies - 8 Oz Bottle - Water-Soluble Formula & Brush Included - Compatible with Copper Zinc & Lead Foil for Stained Glass Soldering
IMPRESA$13.724.6★2,628 rev
WINUSD 8oz Liquid Solder Flux Soldering Flux for Stained Glass Soldering Supplies Electrical Solder Repair Compatible with Copper Zinc Lead for Stained Glass Work Tool Use(Water-Based Formula)
WINUSD$11.573.8★160 rev
4oz Solder Flux for Stained Glass Soldering Liquid Zinc Flux for Stained Glass Solder Work Glass Repair and More Flux for Soldering Tools Stained Glass Tools Supplies Kits(Water-Based Formula)
WINUSD$8.853.8★160 rev
Novacan Old Masters Glass Flux for Solder & Metal Caming 8oz.
Rainbow Art Glass$13.404.8★84 rev
Newest
by launch date
Liquid Solder Flux Flux for Stained Glass Soldering Water-Soluble Formula
OverZyn$9.431 rev
8oz Liquid Solder Flux for Stained Glass Soldering | Water-Based Liquid Zinc Flux for Solder Work Glass Repair & Electronics Repair | Soldering Tools Stained Glass Supplies Kit for DIY Projects
WINUSD$12.365 rev
WINUSD 8oz Liquid Solder Flux Soldering Flux for Stained Glass Soldering Supplies Electrical Solder Repair Compatible with Copper Zinc Lead for Stained Glass Work Tool Use(Water-Based Formula)
WINUSD$11.57160 rev
4oz Solder Flux for Stained Glass Soldering Liquid Zinc Flux for Stained Glass Solder Work Glass Repair and More Flux for Soldering Tools Stained Glass Tools Supplies Kits(Water-Based Formula)
WINUSD$8.85160 rev
Amerway Tigers Eye Translucent Gel Flux
Amerway$13.9081 rev
Trending
90-day click momentumLiquid Solder Flux Flux for Stained Glass Soldering Water-Soluble Formula
OverZyn$9.434.0★
8oz Liquid Solder Flux for Stained Glass Soldering | Water-Based Liquid Zinc Flux for Solder Work Glass Repair & Electronics Repair | Soldering Tools Stained Glass Supplies Kit for DIY Projects
WINUSD$12.364.2★
WINUSD 8oz Liquid Solder Flux Soldering Flux for Stained Glass Soldering Supplies Electrical Solder Repair Compatible with Copper Zinc Lead for Stained Glass Work Tool Use(Water-Based Formula)
WINUSD$11.573.8★
4oz Solder Flux for Stained Glass Soldering Liquid Zinc Flux for Stained Glass Solder Work Glass Repair and More Flux for Soldering Tools Stained Glass Tools Supplies Kits(Water-Based Formula)
WINUSD$8.853.8★
IMPRESA Liquid Zinc Flux for Stained Glass Supplies - 8 Oz Bottle - Water-Soluble Formula & Brush Included - Compatible with Copper Zinc & Lead Foil for Stained Glass Soldering
IMPRESA$13.724.6★
Demand & seasonality
Weekly Amazon search volume, last 104 weeks — -13.0% search growth over the last 90 days.Peak months: Jan, Dec · busiest ÷ quietest = 1.9×
Reviews
What buyers praise and complain about, mined from review topics.What buyers love
“Easy to use”
“Its good quality”
“cleans up nicely”
“Works as promised”
“does what it needs to on galvanized”
“Gel works better for me”
“Good value for money”
“Looks good, will last a long time, with the screw on/off cap”
“The other major difference is that it washes off more easily than the gel flux”
“the solder flowed effortlessly”
What buyers complain about
“It doesn't stay put”
“The other gel flux i used doesnt”
“this is dirt cheap”
“dont fall for advertisements”
“doesn't flow well”
“Big disappointment and waste of money”
“The included brush is tiny”
“Very thin, like water”
“it quickly oxidized”