Kester 24-6337-0027 Solder Roll, Core Size 66, 63/37 Alloy, 0.031 Diameter

Good quality

It doesnt get any better than this. A 60/40 mix has better wetting characteristics, but a eutectic mixture (63/37) is ideal for consistently perfect electronic joints that set bright and shiny if the wire connections are first heated properly (I set my temperature-controlled iron to 700 degrees F). The type 44 rosin flux residue requires a solvent to clean it away (e.g., isopropyl alcohol), but this flux type very effectively cleans metal joints during soldering. Unfortunately, this solder may be impossible to get in the future since the ROHS initiative bans lead. The replacement silver-bearing solders require higher melt temperatures, but Kester will certainly make the best of these solder types, too.

Was dubious of the 63/37 alloy (having grown up on 60/40) and the thin wire until using it. Flowed well and the thin wire required less heat. This is my new go to.

Works as intended, good value

Great product. Better than normal 60/40. Flows better and melts more consistently.

melts easily, nice product

Great to do electrical work with. It heats rapidly, flows smoothly, and makes a perfect joint. I would highly recommend it to anyone interested in buying such a product.

it isd everything that i wanted,it has performed flawlessly

This is some of the best solder I have ever used. It flows very well and has a consistent melting temp. Kester has been making quality solder since before I was born. You cant go wrong with this solder unless you are looking for lead free solder.

This is has been a DIY classic for years. Worked perfectly for restoring vintage audio gear.