Chip Quik CQ4LF Liquid Flux No-Clean (10ml (0.34oz) Pen)

Easy to use Makes resoldering solder flow like water following flux...excellent results..Had to use for an emergency circuit board and 5 chips for a Robotic Surgical Machine and during a 7 hour kidney transplant..Surgery was in progress when it lost use of 2 directions on one of the beams (arms) resoldered using this flux making fast work out of. What could have been a deadly result..Repaired arm..tested. put in new (donated)kidney , Surgeons did thier connecting,,turned on bloodflow..patient was awake and In recovery when i left approx 2 hours after arrival..i asked for Fentynal for my nerves..lol..Recieved great praise from family of patient, Surgeons, and the Co that makes these Surgical Robots..this ones name was Kloe Kidney...I now carry 3 with my soldering torch and iron...buy some..it could save a life...Tom F...field service engineer Pyxis Corp...California..Hospital was In New Haven Ct...Yale:) " I FIXIS THE PYXIS" :)

I am an amateur solderer. When doing research on my new hobby, people recommended Chip Quik. A pen style flux is easy to use and control. However, the tip gets worn very easily, which hinders proper flux application. Aside from that, I like that it's lead free. Customer service is really good. I emailed them about the worn tips and they sent me some replacements. Very nice of them. I'm considering buying their syringe style flux because of their good customer service.

This pen was pretty convenient when I was doing some quick soldering, however after a time I found myself just going back to my old wax consistency flux as it was much more comforting knowing that joints were properly fluxed. The pen seemed like it just didn't get as much flux out as I would have liked it to when I was really trying to perfect my joints. Another issue, as you will see from other comments is that the tip gets frayed really easily as you use it, which makes it harder to get flux where you want it. I personally wouldn't buy this pen again, but it is nice to have now that I already have it. But my opinion would be for people to just use what they are used to over this.

Good flux product for soldering. Easy to use, and good value for the money. Very versatile.

Great for small jobs

The flux is great. The problems are, it takes a long time to wet the tip with flux. The tip wears down extremely fast, to the point that is a frayed mess. To make matters worse, the tip has a tendency to actually absorb any flux you lay down on your work surface, defeating the purpose of the flux. It is recommended to use a liberal amount of flux to assist in solder flow, and since this barely deposits any flux you may as well not use any at all. If you can successfully extract a good amount of flux onto your work surface, it actually works really well and doesn't make a big, sticky mess like other products. Unfortunately, this pen is not the best applicator.

This is so much better than paste flux. You just "write" on your PCB where you're going to solder and it does the job. I shake it up really well so the tip is dripping wet. That seems to get the best joints... Then again I'm still a beginner so I may be wrong. The only con I would say is the the liquid flux dries up on your components fairly quickly so you can't just mark them all first and then solder everything. You'll have to use it on a couple of components, solder those, and then do the next N components. Well worth the money!

I've been preaching the liquid flux game for a long long time, and have turned many a solder sucker into solder gods. But like many, I hate the cleanup or wasted mess that it creates when you just need something direct or on something not as accessible as a loose item. TADA!!! In comes the flux pen! It was a nice thing to see it comes with a n extra felt replacement tip as well in the event the old one gets dried out or destroyed otherwise. I will buy this again. For the price and quantity as well as the quality, you cannot go wrong with this deal!

Wish I had bought this year's ago! Just what you need to simplify and speed up your soldering work, especially when using RoHS solders

Needed it...got it. This one was the best value at the time ...so i bought it and it works just fine. An extra tip was a bonus extra.

Writing this review primarily to counter all those that are critical of the tip breaking and being poor quality, pooling flux everywhere. I've had this for a week now, and have used it probably around 30 times as part of a solder-intensive project - both tip and flux distribution are exactly the same as when I first tried it. The tip has developed a bit of a wedge from where it's constantly run over solder nubs, but that hasn't affected usage. There's also a spare bullet tip, in case anything does happen. It's not complicated - it's a flux pen. Pump it, press over the solder joint and away you go. You don't even have to clean up afterwards.

Praktisch für kleinere Arbeiten

Este tipo de flux es el mas rápido y facil de usar por venir en un formato tipo rotulador. No has de estar con la pequeña brocha echándolo en las partes donde has de trabajar con el soldador y estaño, con este basta acercarlo y dar un par de toques para que el flux salga por la punta inundando solo la parte que tu deseas que tenga flux. En cuanto a calidad de este no es igual al pequeño bote de cristal con brocha JB* que todos conocemos pero cumple con su función muy correctamente, hacer que el estaño se funda con rapidez y sin quedarse una soldadura fría. Espero que esta reseña te haya sido útil 👍.