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

Great for soldering Electronics.

Awesome product. I have worked with Kester my entire professional life as electromechanical engineer 35+ years and this company never lets me down. This is a new item I used and I love it the flow rate is so quick the components being soldered do not even have a chance to get to warm to handle at least for me. The joints look better than mechanical hot flow machines that mass produce pcbs and other items. Always a shiny well even flow no gaps the pads on the boards do not get hot to remove the glue so they stay in place. I soldered some really grody nasty joints on things today and the core worked great cleaning the area so solder flowed evenly and smoothly. Once again KESTER ou knocked it out of the park I will always buy this product and the company that I purchased it from well I had it the next day I think maybe day after I ordered it but that was awesomely quick KUDOS to you. You have my business from now on. I made on a personal level some SMD RGB 5050, 0603, 2835 LEDS to hook up wire 30 Gauge and this solder was the bomb the leds did not even get to warm to touch I took it out of the clip soon as I soldered the common wire flow rate is awesome on new products not to bad on rework either. GREAT JOB.....

This solder Kester 24-6337-8800 is supposed to be some of the best out there. Ive been trying to use it off and on now for 3 weeks and still cant get it to flow well. I dont know if its the no-clean flux... or if that flux is only 1%, but seemingly no matter what temp I set it at, it doesnt want to play nice. It is shiny and clean looking when it is finished, but it just takes a lot of effort to get there. Im sure there is a trick to getting it to work quick and easy, I just havent found it yet. Perhaps when I do Ill adjust this review and toss another star on so that I can let yall know how I fixed what I was doing wrong with it. Till then, Im using KESTER SOLDER 24-6040-0027 which Ive found works beautifully and doesnt take much clean up with the flux.

Best solder Ive used so far. Melts very nicely. Shiny solder joints.

Great for soldering on printed circuit boards. Finished projects required very little cleaning. For non-PCB soldering, I still prefer old-fashion regular rosin-core solder for its ease of flow. All Kester solders are great quality products.

Seems like this is the go-to solder for general wiring use. (Specific application was wiring up a car stereo.) Worked great, no complaints.

I typically use another formula of Kester solder. Decided to give this a try. It works very much like more common Kester solder. I noticed much less residue. It seems to have a slightly higher melting point and a bit less flow (I do through-hole components). The difference is small and the decreased residue is a real plus.

The best there is. Been using Kester for 30 years.

Excellent solder. In my opinion, it’s better than the tried and true standard rosin. The activated rosin is a stronger flux, which allows to use a lot less in the core than standard rosin. So not only it works slightly better, but it leaves much less of a mess than standard rosin behind. You can hardly notice it. Truly no clean needed.

This is worth the bucks if you do any amount of soldering. It is my standard go to.