Kester 24-6040-0039 Rosin Cored Wire Solder Roll, 44 Activated, 0.040 Diameter

Id recommend this Kester solder as it gets the job done, brand reputation is still there, cant beat it!

I just started to solder, my first try was with some no name solder from China, 60/40 rosin core but it was .8 and didn’t work well for me at all. So i researched a little and bought kester brand at .4 and also bought flux. The next try my soldering connections came out beautifull!!!

Its solder, for Petes sake. Works good, lasts a long time!

Best solder I’ve used. Flows easily and makes perfect joints.

Best solder I have ever used will order again

great solder, like it!

We needed a lower melt temp solder for art projects. My daughter is using it to join steel horse shoe nails to make christmas ornaments. Works great. Flows out well and has a good strong bond. Little pricey but it works!

Used this solder on structural steel plates and electronics. Its turned out great in both applications. The flux core is aggressive, and greatly assists in working with corroded metal. It melts very easily, and readily alloys with higher temperature solder so you can help you hot air station do the job if you bought something from Europe. Highly recommended.

I have been using Kester solder in electronics repair for over 50 years. The quality is always consistent and tech support has been there in the past when I needed it. I highly recommend it.

Just what I wanted for repairs. So it is not RoHS compliant, it is what is needed for old electronic repairs.