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

Title says it all.

I do a lot of new work as well as repair work and I love this solder. Not much else to say.

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.

Good stuff flows nicely

Most agree this solder is one of the best out there. I needed solder for an aircraft project, and I needed top quality. Ive used it on a number of projects in the aircraft thus far and gotten consistent and secure welds. Im no expert, and I selected this solder based on the reviews of others, but I doubt youll be disappointed with your purchase.

Quality solder. Cannot go wrong.

Have to have real solder to do the job

Very good product, a little more than i wanted to spend. But happy with the product.

Great product and easy to use. The best quality solder on the market.

I am not an electrics expert or hobbyist and have been using 60/40 solder which is easier to find. I decided to try the 63/37 based on some recommendations.and it was a very nice improvement. The 63/37 stayed at the solder joint while the 60/40 tended to wick up the wire causing the wire close to the local joint to become more brittle. Use 63/37 for cars, airplanes, boats, motorcycles, etc