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🛠️ Flux like a pro, solder like a boss!
Essmetuin No Clean Soldering Flux Paste (4Pack) is a lead-free, halogen-free, and non-corrosive rosin flux designed for electronics soldering. Featuring a pushing-type dispenser for smooth, waste-free application and high-activity rosin to remove oxide layers efficiently, it’s perfect for PCB, SMD, SMT, and electrical wire repairs. Highly rated and trusted by professionals, this flux ensures clean, reliable solder joints every time.



















| ASIN | B0C2L478LM |
| Best Sellers Rank | #5,565 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #6 in Soldering Flux #19 in Soldering Parts & Accessories #63 in Welding Equipment & Accessories |
| Color | 4pack |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,046) |
| Date First Available | April 15, 2023 |
| Included Components | Soldering Flux Paste |
| Item Package Quantity | 1 |
| Item Weight | 3.2 ounces |
| Item model number | RMA799-2 |
| Manufacturer | ZHUOBAO |
| Material | copper |
| Part Number | RMA799-2 |
| Power Source | fuel_powered |
| Product Dimensions | 0.93 x 3.75 x 1 inches |
| Size | 4Pack |
J**N
This is some seriously good stuff!
Real human review here!!! This Flux is pretty fantastic, considering the price. I typically use Amtech ot Stirri, which are both world class, but this Essmetuin will get the job done, almost, as good, for a fraction of the price. I spent some time doing coin cell battery replacement on some of my Super Nintendo games and this Flux was a breeze to work with. It keeps the solder flowing and has great wetting action. All of my joints came out solid and nice and shiny. It didn't smell bad or smoke any more than the better Flux brands that I've used. It also didn't caramelize and harden after use, which I've definitely had happen with some other brands. It is a tacky Flux, but I wouldn't call it overly sticky and it's not ridiculously thick. When dispensing it from the syringe, I would say it has the consistency of something like pudding. But, it obviously flows out of the syringe nice and smooth. And although this is a no-clean Flux, you will probably want to clean it off your PCB if that's what you're working with. Some Q-Tips or a toothbrush and isopropyl alcohol will make short work of any leftover residue. But, if you really don't care, you don't have to clean it up. It won't hurt anything. This Flux isn't any messier or harder to clean than the other brands I've used. Every tacky Flux is going to require some clean-up if you want everything to be, not a bit sticky, when you're finished. For the price, I don't think you can beat this quantity. If you wanted 4 syringes of Amtech or Stirri, you're going to pay 3-4x the price. And those brands are awesome, but the Essmetuin is probably (almost) as good, for 99% of projects.
M**F
Hopefully you find this helpful =)
I recently purchased the Essmetuin No Clean Soldering Flux Paste (4Pack) for various electronics soldering projects, and I am thoroughly impressed with its performance. This solder flux is a game-changer, especially for those who engage in tin soldering and work on circuit boards and copper electrical wires. The most striking aspect of this product is its "no clean" feature. It significantly simplifies the soldering process by eliminating the need for post-soldering cleanup. This not only saves time but also ensures that the soldered components maintain a neat and professional appearance. The consistency and quality of the flux paste are excellent. It adheres well to soldering surfaces, providing a smooth and even application that greatly enhances the soldering process. This consistent quality is vital for precision work on circuit boards and electrical connections, where accuracy and reliability are paramount. Another commendable aspect is that the Essmetuin flux is lead-free. This makes it an environmentally friendly choice and aligns with health and safety standards, which is increasingly important in electronics work. Each pack in the 4-pack set is a testament to the thoughtfulness of packaging. The containers are well-sealed, ensuring the flux remains fresh and free from contamination. This attention to detail in packaging reflects the overall quality and professionalism of Essmetuin as a brand. In conclusion, the Essmetuin No Clean Soldering Flux Paste is an outstanding product for anyone involved in electronics soldering. Its ease of use, high quality, and environmentally friendly composition make it a top choice for both hobbyists and professionals. I highly recommend this product for your soldering needs; it truly enhances the efficiency and quality of soldering work.
T**E
Decent flux in large quantity
I can't say this is the best flux I've ever used, but it's pretty good and definitely gets the job done. It is relatively thick and stays in place until heated. I'm a fan of the included needle ends since they make precise application easy. The best thing about this flux is really just the sheer quantity you get for your money.
J**P
Buy this, over and over again!
Can't speak for other options, but this one is the ticket! Syring comes with different size tips to get the flux where you want it and it works great. Will buy again!
J**S
Good stuff
Quality, worked excellent, easy clean up.
N**O
Sticky and somewhat hard to clean, but VERY effective.
This flux does everything it needs to. It holds up for a long while without burning off, and when used with good solder, leaves it almost unnaturally clean. I'm my testing I could keep a ball of solder completely shiny and flowing indefinitely, as long as it remained in contact with this flux. It was less effective at refreshing already dry joints, but it still preformed acceptably in these cases. At temp it's easy enough to wipe away, but it seems highly resistant to common organic solvents, and entirely unaffected by soap and water, so if you need residue free parts, a qtip or adsorbent material is essential for removal, and it must still be hot if this route is used. Price is just insane for the volume that you get. Will get MANY uses out of the multipack that I did
A**Z
Essmetuin No Clean Soldering Flux Pen — Makes small electronic repairs way smoother
Verdict: 5★ — this no-clean flux pen makes my solder joints flow better and keeps tiny pads from lifting when I’m working on boards. I’ve been using it on small electronics in the garage and at my workbench, especially when touching up joints on game controllers and little modules, and it helps the solder grab fast without a big sticky mess. Q&A: Application — the pen tip lets me put just a thin line right where I need it, instead of globbing flux everywhere; Cleanup — “no clean” holds up, the board doesn’t look nasty afterward and I don’t have to scrub it with alcohol unless I really want it perfect. Who this is for: Anyone doing PCB or controller repairs who wants an easy, precise way to add flux without dealing with paste tubs and brushes.
M**M
BUEN PRECIO
ME GUSTO
M**A
مثالي جدا
ممتاز
J**H
Amazing flux
Decided to try this brand out and I’m very impressed with what I found. I’ve always stuck to the big names for soldering equipment but decided to give this brand a go. Absolutely love my decision, the quality is there and the product itself works great. I’ve been using it for over a month now and I’m getting perfect solder joints and the flux is performing exactly how I’d expect. I love the choice of two needle lengths and I also love how the syringe comes with the plunger removed. So many times I’ve experienced mishaps where the plunger is depressed and my flux goes everywhere before I receive it. Them shipping it disassembled with the plunger removed completely prevents this. Absolutely will be repurchasing, came in such a convenient and easy to use form factor. The syringe fit my hand very well
Z**N
I am satisfied
does the job well
A**H
Nice Product and Worked as intended
Nice Product and Worked as intended
J**F
Highly recommended
Awesome stuff
Trustpilot
4 days ago
3 weeks ago