Kester 24-6337-0010 44 Rosin Core Solder 63/37 .020 1 lb. Spool

I am used to Alphametals made in Brazil. The trade mark is BEST and it is really the best. This one from Kester is not good at all. The flux core is not continuous, so when you stat soldering, some spots go fine and some dont. I need to use extra SMD flux paste to finish the job, what takes longer and compromises the quality. I would say do not buy, but these company took over the market and that is the only option we have. The other option is to import from BEST in Brazil.

Appreciate not ruining around finding the product

I only use Kester solder. The 0.020 diameter is better for working on smaller PC board components.

Melts nicely and doesn’t burn. Fills crevices easily and is easily removed using solder wick. Doesn’t drench my protoboard in flux. Be sure to use a good quality temperature-control soldering iron or you’ll get bad results no matter how nice your solder is.

I have a project with almost 500 hundred leds requiring thousands of connections. The difference between the Kester solder and the cheaper Chinese solder is night and day. The cheap solder was harder to work with and left dull connections. The Kester solder was much easier to work with, flows easier and left bright shiny connections even after reflow. I remember using this solder decades ago and had forgotten about it. Now that I am back to my electronics hobby using this solder is a must. Spend the extra money for this solder, your work will go faster and easier and you wont be disappointed.

It is exactly what it is. Nice and shiny. fast delivery, too.

great deal on solder

Very good quality And very good seller

Very good solder. Much better than thicker solders sold with soldering irons!

Prefer this smaller size for a lot of electronic work as it wicks better - does not ball up like .030 can. I do use .030 as well though. For most applications use this 63/37 not 60/40 it flows much better and gives a better looking joint