We don't want to hype this solder TOO much, but this could possibly be the best solder in the world. There, we've said it. This is a special blend made specifically for us and we love it. It all started as a quest to find the best solder to use in our production process and ended up being the best we've tried. The best part is that it's lead free and has a water-soluble flux core.
This package contains 1/4lb of solder and has a diameter of 0.020" (0.5mm).
**Mix: **96.35% Sn (Tin), 3.0% Ag (Silver), 0.5% Cu (Copper), 0.15% Sb (Antimony).
This skill defines how difficult the soldering is on a particular product. It might be a couple simple solder joints, or require special reflow tools.
Skill Level: Noob - Some basic soldering is required, but it is limited to a just a few pins, basic through-hole soldering, and couple (if any) polarized components. A basic soldering iron is all you should need.
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Based on 13 ratings:
1 of 1 found this helpful:
This solder melts easily, but holds a firm grip. Even with mediocre soldeing skills, some of my classmates' cold joints made using this solder have held in mechanical connections. Yet, it is still very workable and flows with ease compared to a 60/40 solder I used to use.
1 of 1 found this helpful:
I highly recommend this solder. It is the easiest melting, best flowing lead free solder that I have ever used. I especially like the 0.020" diameter, which makes flow control much easier. I used to introduce my students to soldering with 60/40 lead and felt bad about starting them out on the wrong environmental "foot". We regularly use this solder now with no more beginner's problems than we had with lead. I have also been able to use a cooler iron with this solder. (I have to be honest - any soldering has beginners' issues. Our students regularly burn the tips of their soldering irons. This solder's flux also scorches, but I'm not sure it is any more prone to this than any other.) Buy it!
2 of 2 found this helpful:
This is excellent lead free solder, but I wish Sparkfun would also sell a smaller diameter version. When working on small pitch parts, I find it's hard to limit the amount of solder deposited. I'd love 0.010" and 0.015" diameter versions of this solder.
2 of 2 found this helpful:
I don't know what is up with this solder, but this amazingly expensive solder just doesn't work at all with the equally amazingly expensive Weller WE1010 Soldering Station. It doesn't tin up the tip at all, even at 800ºF it just won't work. It mystifies me how bad this solder is compared to the other bits and pieces of old solder I have laying around.
I guess I can't hold it against this product that it is so thin that it is almost impossible to hold onto (and I have good dexterity), but I wish I had known before I ordered such an expensive roll of solder. It bends too easily, buckles under the slightest pressure and won't melt reliably. $30 of solder down the drain. If SparkFun were a store that I could take it back for a return, I would, but sending it through the mail, shipping costs and all, it just isn't worth the effort.
I'm sorry to hear that you're experiencing difficulties with this solder. I use this for many of my own applications and projects as well as the .032" spool. They work well for me. There are a few things that you can try:
Just switching to this stuff makes every joint look great :)
As a side benefit, it also seems to be way tougher than standard 60/40. I've had to do some small scale structural soldering, and the joint made with this took about 25% more weight before yielding. This was probably due to the superior wetting that this solder can achieve.
Fantastic solder, I think it's the best I've ever used, the thickness(0.5mm) is perfect and it's so easy to use, it melts and flows easily, highly recommend. I've heard some bad things about lead-free solder, but this one is just AMAZING! I got it right the first time I used it, I think it will be a great option for starters, and for any one actually.
I have 35 years of soldering experience, and this is the worst solder I have ever seen. melts poorly, does not easily flow or bond to the pads. I have tested this for an hour now in the temperature range between 300 and 400 degree, and I can not get good flow and bonds. compared it to a standard 99.3/0.7 lead free solder, which gives me good results immediately. I normally love sparkfun products, but this is over-hyped crap.
This solder heats and flows well, and the flux has a burn temperature more appropriate to the solder's flow temperature. It's thin enough for rapidly soldering the headers onto an MCU board, and thick enough for soldering the lugs of a heavy duty switch. In my one-and-only-ever attempt to mount an SMD component, this solder cleaned up after I botched my first attempt so I could get it right.
I like the small diameter for working on tiny parts that require a lot of precision. It’s great solder as advertised and flows really well. Only reason I’m giving it four stars is that I think it’s kinda expensive for how much solder is on there (pretty close in weight to their lead free 200g spool but like three times as expensive), and also the fumes from this are SMELLY. I mean REALLY bad and I had to finally get a solder fume extractor for my desk after using this solder. I’ve used plenty of flux core lead free solder in my life and this puts off by far the worst fumes.
0 of 2 found this helpful:
... it's still cumbersome to solder with it (for beginners, especially) as it doesn't flow with the same ease as tin-lead alloys.
not sure what else there is to say. flows pretty good for a lead-free solder.