TANG HONG 558 Solder Flux,Lead-Free Rosin Flux,No Clean Soldering Flux for Electronics,Suitable for Soldering Electronic Components (10g)

I originally bought this product and when it came, it didn't have a tip for dispensing the product. Customer service reached out to me and sent me another bottle with the tip free of charge. A company that stands beside their product is an honeable company to me. It's easy to clean, and easy to apply on the smallest components without making a mess. I will be buying more as I need it. Thank you Tang Hong for the replacement bottle.

Grandson uses for modifying DCC sounds in his HO scale railroading and I see him use it a lot. Winner.

In the past I had only used a soldering iron to tin and join wires, and always struggled with circuit board work and desoldering. However, as I became more interested in doing some retro game console modding I came to realize that flux was the missing component from my soldering experiences. So when I decided to do some work refreshing my old Dreamcast I grabbed a tube of this flux.From the start the difference of using flux was night and day. The solder flowed so easily and actually went where I wanted and didn't create obnoxious globs of solder when I removed the iron. And when it came to desoldering, I was amazed how easily the solder wick was sucking up the solder after using some flux. I can not tell you how frustrated I was in past experiences trying to use solder wick and it doing nothing. Once again flux was the missing piece. Needless to say using this flux has really given me a lot of confidence in my soldering abilities and has me looking for more mods to do to my other consoles.The syringe style also makes it extremely easy to control how much you're adding and is easy to apply exactly where you want it without making a mess. The clean up was also extremely easy, just used some 91% iso on a cotton swab and it wiped away really easily, though it did get kind of tacky if I waited a few minutes to clean up the melted flux.

I do a lot of electronics work, most on vintage computers or old radios. I always need lots of solder and lots of flux. So, I’ve used many different manufacturers for my solder & flux and feel I know what works and what doesn’t. I use flux to prep an area that I’m going to work on - either to desolder or to “prime” an area for my solder to allow for better and smoother flow of the solder when applying. I always try to achieve smooth shiny joints after my work is done and proper flux helps with this. This particular flux is quite good. It definitely ranks up there in the better flux compounds that I’ve tried. It is easy to apply since it’s in a syringe type mechanism with a needle point end so you can get it exactly where you are working on whether that be an SMD or through hold electronic component. This flux flows easy and cleans up well. It says no clean, but I always clean all flux work no what what kind with some isopropyl alcohol just for my contentment and thoroughness. I like that the flow of the flux can easily be controlled and unlike other liquid flux this doesn’t immediately go flowing all over your circuit board. This one flows a bit slower so you have great control in applying it exactly where you need. I’m very happy with this flux and will definitely be seeking it out for my future electronics projects. Definitely a recommend.

I have been using solder paste with desoldering wicks for years. This method has been working well for me or this year. I wasn't looking for another sort of paste for that purpose. I was going to try reballing a RTX 2070 video card. However, the project was canceled because the recent price drop of the video cards making it hard to justify investing so much time into fixing a 4-year-old graphics card. Anyways, I decided to try using this paste for desoldering work. I would be happy if it just works as well as the solder paste I've been using. It was a pleasant surprise to see the wick sucks up old solder better with this paste, and it is easier to clean up. This is going to be my go to solded paste from now on. I give it five stars.