| Electronics > Beginners |
| RS Pro Tin 60/40 or Multicore 60/40 |
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| exe:
--- Quote from: tooki on April 26, 2019, 01:37:13 pm ---the only other brand of multiple-flux-core solder I’m aware of, beside Multicore, is Stannol --- End quote --- For some reason I think it's the same company (Loctite). |
| bd139:
Loctite 60/40 is what I mostly use. I bought ten rolls of it from eBay user “follymodels” recently. Should last a few years: https://www.ebay.co.uk/itm/BULK-PACK-OF-10-x-110-GRAM-REELS-OF-HIGH-QUALITY-LOCTITE-MULTICORE-LEADED-SOLDER/312232426709 Multicore and Loctite are same stuff. I prefer 62/36/2 but it’s really expensive. Think I paid £27 for 250g of it. |
| exe:
BTW, I'd happily buy a solder wire without any flux in it if it was easily available. While I'm a happy user of stannol solder wires (with HS10 flux), I found flux of a limited use. Basically, it only works if parts are new and shiny. Otherwise external flux is needed anyway. I also had to tune temperature when I was soldering wires. There was a sweet spot when it worked, otherwise external flux was needed. Another reason I want a solder wire without flux is I don't know properties of their flux (basically corrosivness and conductivity). I know it's "no clean", but this really means nothing without numbers (=sir test). |
| ElectronicCat:
--- Quote from: exe on April 27, 2019, 09:05:49 pm ---BTW, I'd happily buy a solder wire without any flux in it if it was easily available. While I'm a happy user of stannol solder wires (with HS10 flux), I found flux of a limited use. Basically, it only works if parts are new and shiny. Otherwise external flux is needed anyway. I also had to tune temperature when I was soldering wires. There was a sweet spot when it worked, otherwise external flux was needed. Another reason I want a solder wire without flux is I don't know properties of their flux (basically corrosivness and conductivity). I know it's "no clean", but this really means nothing without numbers (=sir test). --- End quote --- If you buy from any reputable seller they should list details on the type of flux and it's properties. If you really want solder without flux look at plumbing solder, although this tends to be quite thick. |
| exe:
--- Quote from: ElectronicCat on April 27, 2019, 09:16:26 pm ---If you buy from any reputable seller they should list details on the type of flux and it's properties. If you really want solder without flux look at plumbing solder, although this tends to be quite thick. --- End quote --- I'm yet to see a flux with any good specification. I have like 15 fluxes, none of them have any important details, including amtech, etc. No flux specifies resistance, esp. at different temperatures. No flux specifies acidity when not activated (useful for hand soldering), etc. So, the only real solution is clean it well (but may not work well for bga). Or characterize manually (that's what I did). I have only one flux that is claimed to be compatible with precision equipment, but again doesn't tell if its claimed resistance is unconditional, or after full activation. Why not clean it? I found that good cleaning is quite difficult. Probably, an ultrasonic bath with full submerge is the only solution. Cleaning with a tooth brush is not efficient, imho. It's hard to clean clean under ICs, for example. It's not easy to clean solidified flux residue. |
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