5 Pieces Soldering Rosin Flux Pen No Clean for Electronics Welding Rework

Constructing lighting effects for theatre group. Many tiny solder joints on smd boards. Until I found this, I had to rely on flux paste, which is clumsy and messy and you *cant* keep the workpiece clean.Cannot recommend highly enough.

They seem to help significantly, though my main action to ensure easy soldering has always been mechanical preparation of the surfaces. Combining this with the rosin pen does seem to speed the wetting of the surfaces. I suspect the amount of rosin present may be small, but just enough.

Only small volume of flux

Struggled to get any flux out of these pens as the tips just don’t work and when I did manage to finally get some out it really didn’t help the solder flow at all

Super easy to use flux pens - i've used 2 out of the 5 so far without any problems and have been able to apply just enough flux for a repair. I'm pretty heavy handed when it comes to flux paste so these pens have been a massive help to me.

Made soldering very easy when applying to the circuit board