Kester 24-6337-8800 50 Activated Rosin Cored Wire Solder Roll, 245 No-Clean, 63/37 Alloy, 0.031 Diameter

Use it when soldering flight control boards on RC aircraft.

Ive tried other brands, Kester is the best. For almost 30 years Ive used this brand and cannot say enough good things about this solder.

Melt easy, solder cleanly.

USA Quality

GREAT FLOW AND GREAT DEAL.

I know its not politically correct to say this but wow - what a relief to get back to a good tin-lead solder vs. the no-Pb stuff I struggled with. Just could not make it work with my controlled temp Weller station. I love this Kester alloy.

Cant go wrong with Kester...

I had never used 63/37 solder before. I always bought normal brand 60/40 rolls. This solder takes me to a whole new level. It melts at a lower temperature. It is very thin and thus more suited to the precise joining jobs that new electronics require. I had to practice before I could reliably control this thin stuff, but my effort was rewarded. It is more expensive than the normal solder, but worth it to me.

This solder is very flexible and easy to use. It melts and cools quickly and makes soldering very easy!

Limited use so far, but did exactly what I needed.