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

This solder is great. The rosen core really helps. It flows smoothly and clean. Highly recommended.

This is great solder, one of my favorites. But Kester really blew it on the packaging. Rather than a full box, the spool is in a topless cardboard hexagon. There is strapping tape over the top, holding the spool in. Unfortunately, the tape is also stuck onto the only label on the spool—so you cant open it without ruining the label. Im not sure what whoever designed this was thinking...

This stuff was so difficult to use, I dont think mine had any flux in there. Would only clump up trying to use it.

Use this daily as an audio professional!

Best solder I’ve found when working with simple circuit board applications. Doesn’t smell horrible and is very easy to flow without a lot of gross flux. Have been using this for years. Worth it.

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

When you need something that works, get this.

Kester always produces excellent product, & this has been no exception. Keep it up! Thank you!

Use it when soldering flight control boards on RC aircraft.

My old solder was from the 1970s, but I was having issues with it not flowing cleanly. I decided to try a newer roll, which has the same specs. For some reason, this one performs better.