Alpha Fry AT-31604 60-40 Rosin Core Solder (4 Ounces)

Used this to Solder some new 6 volt old car battery cable ends. Perfect product for the job and used with “SRA Rosin Paste Flux #135 in a 2 oz Jar” from Amazon too.Only thing I’d like differently is for the thickness to be twice the size, but that’s not their fault I just couldn’t find that size for my application. For the application I was using it for, it still worked great but had to unroll a few feet a couple times to have enough to solder the 2/0 cable ends & cable together. For fine electrical applications such as 16 gauge wire, it would be the perfect size.3/1/19 update: working perfectly for me Electrical application! I covered the soldered joints with some electrical shrink wrap to keep it from corroding.

I have a year old Weller WLC100 40-Watt Soldering Station. I'd been using some solder from Harbor Freight Tools, but I always had trouble tinning my tip. Eventually, it got to the point where solder just rolled off the tip, and it was nearly impossible to transfer heat to make a solder joint. I new it most likely wasn't the soldering iron, and I was afraid I some how had destroyed three different soldering tips through my inexperience. But then I ordered this solder, and right away, it started cleaning off my tip, and I had no trouble at all tinning my tip. Now soldering is a breeze. I can solder an audio connector in a matter of seconds, not the 5-15 minutes it was taking before. So my message is twofold: This solder works very well for both small electronics and larger wires for audio cables (it's thick enough for audio cables, but not ridiculously thick to use on electrical components, like LEDs. And the solder they sell in coils at Harbor Freight Tools is absolute junk. If you're having trouble soldering, try this solder first, before buying a new tip or throwing out your iron, or trying to drip solder on your connections.

Best solder I've used yet tried multiple different solders and this one takes the win for electronic soldering.

It's a good solder and It flows nicely. However, there's no way this is 0.062" in diameter. At least, not the roll i got. It's way too thick for pcb work.

Perfect, exactly as described!

works good when solding.

This solder is exactly as described as far as I can tell. I am a (relative) novice in soldering but everything looks fine. I actually meant to order the thinner stuff but that's not the seller's fault. I just forgot to check. This size will work. This is easily the best solder I've ever used. Granted, I have only bought solder 2-3 times in the past and that was years ago. The last time was lead free solder. I did not realize it was inferior because I was only thinking about the fact that I wanted solder without lead and didn't know any better.I have a new iron on order but the solder arrived before the iron so I tried this out with my OLD iron (easily over ten years old). It's just a cheap 30 watt Radio Shack iron with a horribly ruined tip (I have only recently been doing research on how to solder). Once it got up to temp, this solder seemed to flow and stick to 18 gauge stranded copper wire just fine and made a strong joint.My new iron was also cheap and will be a 30 watt but (assuming it actually works) I'm sure this solder will be fine for it. No more often than I actually need to solder anything, this roll will probably last for years. It's just the kind of thing you need in your toolbox even if you don't use it all the time.Anyway, never heard of this brand but it seems perfectly fine if you need this size.

This is a large-gauge solder, so not ideal for the small components I usually solder. This would probably be more useful for a soldering gun than an iron. But, I've found this solder works extremely well for flushing the iron tip. I'm not sure if the flux is somewhat more aggressive than other brands, but it cleans and removes oxidation very reliably. Even more so than the "tip-refresher" products on the market. It's my go-to for keeping the tip wet during non-use.