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What's your solder of choice? (images2.imgbox.com)
submitted 11 months ago by lemann@lemmy.dbzer0.com to c/askelectronics@discuss.tchncs.de
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I recently came to the realization that I've been kinda punishing myself with cheap no-name solder that is really difficult to work with.

I reluctantly bought this (rather expensive) lead free solder for around $25 and the difference really took me by surprise - it melts and flows so easily!

Kinda got me wondering what everyone else has been using for solder, or what's worked well for you so far at least?

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[-] Bishma@discuss.tchncs.de 13 points 11 months ago* (last edited 11 months ago)

Ages ago (80's I think) there was talk of making lead free solder the only type that was available to consumers, and my great uncle (a deal horder) went out and got 2 cases of radioshack 64/40 resin core. Pretty sure it's the same stuff you can still buy today, but I've got another 4 spools in my kit (that are old enough to drink).

In my uncles defense sometimes his deal hording paid off. He once saved a family reunion when our venue fell through because he happened to have a dozen brand new hibachi grills in the apartment he rented just for his stuff. And he made a small fortune when he bought a bunch of freon before it went off the market.

[-] OmegaPillar@lemmy.ca 10 points 11 months ago

Kester 63/37 no-clean 22AWG for leaded work, SN100C no-clean for RoHS. Mg chemicals and chip quik are good alternatives, Kester can be expensive to justify for home use.

[-] ignotum@lemmy.world 9 points 11 months ago

I use cheap trash solder, and dislike soldering, very possibly because of it

I'll look into upgrading my solder, thanks 👍

[-] carbonprop@lemmy.ca 6 points 11 months ago

I got some cheap solder with my solder station and it was the bane of my existence. Found some leaded solder I think I got from radio shack years ago and it works so well. I hate to say it but I haven’t yet had good success with unleaded solder. Someone please save me from the brain damage.

[-] ignotum@lemmy.world 4 points 11 months ago

That's just healthy, you'll build up a resistance to lead poisoning

"What doesn't immediately kill you always makes you stronger"

[-] ThePantser@lemmy.world 7 points 11 months ago

"What doesn't immediately kill you always makes you stronger"

Cancer?

[-] notthebees@reddthat.com 9 points 11 months ago

I have 60/40 leaded solder that worked pretty well. I'm definetly going to invest into some good lead free solder

[-] troyunrau@lemmy.ca 4 points 11 months ago

I'm all about the leaded solder -- but I also use it very infrequently and don't worry about the motility of my swimmers ;)

[-] nilloc@discuss.tchncs.de 10 points 11 months ago

I think it’s the your synapses you need to worry about, but I forget, I love my 60/40 too. Still have a couple big rolls from RadioShack.

Really though if you wash hands after handling it, and use it in such small hobby scale quantities as most, it won’t matter. The smoke from the burning rosin is probably more dangerous.

[-] what@discuss.tchncs.de 7 points 11 months ago

60/40 leaded solder with rosin core, from a local reputable supplier

[-] Revan343@lemmy.ca 7 points 11 months ago

Leaded baby

[-] caseyweederman@lemmy.ca 2 points 11 months ago

With no ventilation! Mmm, smells like dying brain cells.

[-] roterabe@discuss.tchncs.de 5 points 11 months ago

The smoke is from the rosin core and flux. Lead free is equally bad for the lungs.

I wouldn't eat after touching Lead though.

[-] extrangerius@lemmy.world 5 points 11 months ago

While 60/40 is a joy to work with, I gave SAC305 a shot and it's been totally fine for my uses with hobby electronic projects. You need to run your soldering iron hotter so it'll be rougher on your iron's tips, but I haven't noticed much difference in ware, etc.

As a hobbyist, contributing to junk with lead in the world is something that's been bugging me for some time. Additionally, it feels silly but there's also a certain relief in not having to worry as much about contamination between my workbench and the rest of my environment.

If you haven't already I'd also suggest getting some good flux. The Amtech NC-559-ASM has been working great for me.

[-] lemann@lemmy.dbzer0.com 1 points 11 months ago

That makes sense! In my case I actually needed to turn down my iron temps for the lead-free solder, previously had it ridiculously high from when I was trying to work with the cheap no-name solder.

This new lead free stuff is great, it comes with a price tag but it's eons better than the no-name stuff IMO.

I have flux (syringe type) but I have no idea if I'm using it correctly, or if it's just not that great. Haven't noticed too much of a difference when soldering with it, apart from needing to brush off the circuit board with some contact cleaner to remove the residue

[-] th_in_gs@lemmy.sdf.org 3 points 11 months ago

What temperature are you using?

[-] lemann@lemmy.dbzer0.com 4 points 11 months ago

350°C, although I occasionally turn it down to 325 when I don't need the extra heat.

When I was using my older, cheaper solder, I had the iron maxed out at 420 and that wouldn't melt or flow easily

[-] atrielienz@lemmy.world 3 points 11 months ago* (last edited 11 months ago)

The navy gave me a spool like 5+ years ago. It has no label. They were going to trash it. I have no idea whatsoever what its composition is. It's rosin core and that's about all I know. I also have a few different gauges of safety wire and shear wire.

[-] irdc@derp.foo 3 points 11 months ago

I have a similar-sized roll of 0.5mm Felder Sn100Ni+ with their ultra clear flux. Love the shinyness.

Indeed, don’t skimp on solder, especially when soldering lead-free.

[-] seathru@lemm.ee 3 points 11 months ago

Give me good ole rosin core 60/40 lead solder any day.

Admittedly I've never used any "good" lead free solder.

[-] BigDanishGuy@sh.itjust.works 2 points 11 months ago

60/40 baby! https://www.esr.co.uk/shop/contents/en-uk/p32410_100g_0.7mm_%2822SWG%29_60_40_Solder_%28RoHS_Exempt%29.html Not from this shop, but the hqproducts label is the same.

Word came down from on high, that I wasn't to use 60/40 for teaching anymore. Usually went through about 1kg annually, and I had just stocked up. I think I had just gotten 8kg, or something like that, because of the bulk rebate, about a year before. And what was I to do? We weren't allowed to have the solder on premises anymore.

So anyway, 60/40 for 1.0 and 0.7mm and some sn/pb/ag for 0.25mm. And no, I don't have ventilation for my workspace, but I do have enough solder to last a couple of lifetimes.

[-] Godort@lemm.ee 2 points 11 months ago

I use ChipQuik's 62/36/2.

I haven't found a lead free solder that works as well as this stuff. Plus, I never need to worry about silver-plated stuff cracking at the joint.

this post was submitted on 25 Dec 2023
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