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⚡ Elevate your solder game with flawless joints every time!
This 30 ml Liquid Solder Flux Dropper features a high-purity RMA rosin formula that effectively removes oxides from various metal alloys. Its non-corrosive, neutral pH composition ensures safe use on circuit boards, while its oxidation-resistant properties guarantee smooth, shiny solder joints. Lead-free and organic, it offers a safe, professional-grade soldering experience ideal for electronics enthusiasts and professionals alike.







| ASIN | B0CN29BZKV |
| Best Sellers Rank | #501 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Soldering Flux |
| Color | Amber |
| Customer Reviews | 4.6 4.6 out of 5 stars (3,289) |
| Date First Available | November 9, 2023 |
| Included Components | 1 Solder Flux Dropper |
| Item Package Quantity | 1 |
| Item Weight | 1.23 ounces |
| Item model number | CP-4023 |
| Manufacturer | Quimtech |
| Material | Rosin |
| Part Number | CP-4023 |
| Power Source | ac_dc |
| Product Dimensions | 3.93 x 1.26 x 3.93 inches |
| Size | 30 ml |
J**F
Works Perfectly — Exactly What I Needed.
I’m really impressed with this liquid solder flux. The dropper bottle makes it super easy to apply just the right amount, and the consistency is perfect — not too thick, not too runny. It flows clean, helps the solder grab instantly, and leaves no mess behind. I’ve used a lot of flux over the years, and this one stands out for how clean it works and how reliable it is on small electronics. The bottle size is great for the price, and the quality is better than I expected. If you do any kind of electrical work, repairs, or hobby soldering, this is absolutely worth having on your bench. Bottle design is good and the applicator makes this a very versatile item to keep on hand with your soldering station or on the go. I’d definitely buy it again.
R**S
Would very highly recommend this product
This flux is some of the best flux I have ever had for the money definitely get this product is very versatile it works on all boards and components bleeding into boards as extremely easy to use you do not waste very much at the bottle is easy to grip and it fits in your hand so very well squeezing it and not too much comes out which is perfect it has great control on the nozzle I would say that this is a very superb product and anybody that works on electronics and does soldering needs this product
W**H
An outstanding addition to your electronics shop bench!
OK, so this is not the most expensive investment you will make in the electronic shop. Probably not even in the top 10. But this is an excellent product with superior results. Solder flows quickly and cleanly. Removing or adding solder is effortless. This may not jump out as an incredible experience, but it won't let your soldering pop up as a problem either. Good tools = Good performance.
J**S
Accurate “Liquid” Flux — Works Well, But Know What You’re Getting
They definitely mean **liquid** when they say “liquid flux.” That’s on me—I was hoping for something with a consistency somewhere between paste and liquid, but their description is accurate. As a flux, it does exactly what it’s supposed to do and helps the solder flow nicely. Because it’s a true liquid, it also flows *everywhere*. This can be helpful, but sometimes problematic. When soldering through-hole components, for example, it drips straight through and coats the underside of the component, which isn’t always ideal. For those situations, I’m finding I still prefer traditional paste flux. Cleanup is typical, maybe a bit stickier than what I’m used to. You’ll definitely want IPA on hand to clean it properly. One small note: The package didn't come with instructions on how to install the finer-point nozzle. However, if you scroll through the product photos on Amazon, you can see how it’s done. Once I figured that out, installation was easy and the fine tip works really well for getting flux into tight areas. Overall, it’s not a bad flux at all—just make sure you know what you’re getting and whether a fully liquid flux fits your workflow.
T**7
Good assortment!
The overall quality and usefulness are both good. The assortment is useful, the quantity is generous, and it is a good value for wiring or fabrication work. The correct gauge, die, heat, and strain relief still matter for a dependable connection. So far, it has worked exactly as intended.
S**S
Easy to control and works!
Awesome liquid flux with application needle makes it very easy to apply flux to small items like 22 gauge wire and LED solder pads. Much easier to apply than using paste, and it works very well. Wish I had found this earlier in life.
J**F
Very Effective for Solder Prep
All you need is a lite coating of this on copper wire and you are ready to solder. The residue is easily wiped off if needed. The thin neck dropper gives good control of the liquid and the attached stopper is easy to use.
C**N
Fantastic Flux
Really nice applicator bottle with a long tiny metal pointed dropper at the end. Just a tiny drop and the solder flows like butter. This is an organic nontoxic product that works perfectly. Highly recommended from this channel;)
J**.
good flux
Really good stuff, cleans the metal well for soft soldering. East to fit parts. good value for money, not particularly sticky, but runs well into joints, Would recommend.
B**S
I'll continue buying Quimtech flux, no doubt
Huge fan of this flux, because it is easy to apply where you want it and very effective in improving flow and adhesion. I get really clean joints that flow so easily with this flux. It says it's "no clean," and I think that's a bit of a stretch, but it does clean up pretty easily, especially compared to other fluxes I've used. Also, it lasts a long time. I've used it on every joint (and there have been a lot of joints) for a couple of months now, and I'm maybe 1/6 of the way through the bottle. Plus, it's a Guatemalan company, which I appreciate. It's nice to actually have global goods in a global market, and not just all the goods coming from the same city in the same country (no shade, Shenzhen).
N**J
Excellent
Excellent product for clean soldering, worth the cost
M**Z
Tapa bien cerrada por favor…
Probablemente un buen producto pero llegó en mal estado, la tapa no estaba bien cerrada y había una fuga en el embalaje. Espero novelas…
D**R
It's a good
It's a nice product
Trustpilot
1 month ago
1 week ago