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A good flux for soldering?

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G8B4Life:
So I've just re-affirmed how much I hate soldering  >:(. Ok, I sort of fib, I don't hate it (I don't actually altogether mind it) so much as I hate how difficult it can be when it just doesn't want to work well (which is often for me), and that's the subject of today's post.

What is a good solder flux for electronics work? Today I soldered some 32 AWG wire to the tiny little tabs of a couple of iPhone4 speakers and without applying any flux to the tabs it was just painful to get the solder to stick (the solder was rosin core but sometimes that's not enough). I have a tube of some Radio Shack brand flux (about 30 years old!) that used to work very well and possibly still does but it's a thick sticky honey like consistency flux so not really a good choice these days. I'm thinking something water like consistency that can be applied with a small brush, or needle squeeze bottle.

- Tim

Alan:
Pg 11 https://www.mouser.com/datasheet/2/265/Solder_products_catalog_Web-1290892.pdf

G8B4Life:
Thanks Alan.

I'll definitely have to find a local source, that particular flux is "Shipping restricted" by Mouser. Oh well, at least it seems MG Chemicals has a local presence here. That should help with local availability.

- Tim

BruceRogers:
I use Kester 951 No Clean Flux. I switched from the acid fluxes some time back, after reading that they weren't the best for soldering wires etc.

Alan:

--- Quote from: BruceRogers on May 16, 2020, 02:40:52 PM ---I use Kester 951 No Clean Flux. I switched from the acid fluxes some time back, after reading that they weren't the best for soldering wires etc.

--- End quote ---

Yeah, acid fluxes are for plumbing. Rosin for electrical.

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