I use Superface #30 water soluable flux for electronics. Note that if you actually look up the product - it actually is a weak organic acid, but it is nothing like acod flux used for plumbing and is completely safe for electronics. I use it for everything, but it works extremely well for soldering rails together, or when soldering rail to PCB ties, such as making Fast Tracks jig-style turnouts. Excess is easily wiped up with isopropyl alcohol pads.
--Randy
Modeling the Reading Railroad in the 1950's
Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.
Getting a whole lot of something at a low price (or for free) is not always as wonderful as a person would hope.
Except when it is.
Ed
That's 8 onces of flux. You better plan on leaving that in your will for your great grandchildren.
Henry
COB Potomac & Northern
Shenandoah Valley
Looking at the Amazon page, it looks to me like it's meant for plumbing. That "fact" doesn't mean you can't use it for electronics. Or that you can. Only that the intent of the manufacturer is for "heavy" soldering.
Note that the stuff is a mix of flux and solder, thus the word "tinning".
I wouldn't use it. I use solder specifically designed for electronics. And the same for flux. Which I DO use.
For solder I use: Kester rosin core 44 in the .5mm size
For flux I use a liquid rosin flux
I have been paid by a military contractor to do this work.
I have a container of Oatey brand #95 "tinning flux." I have reviewed the label and see nothing stating it is an Acid flux, which I understand is bad for electronics. It is used for soldering copper pipes, but can I safely also use it to solder wires, or to solder a wire to a turnout frog?
For soldering, I am using rosin-core solder (not acid core).
Here is a link to the flux specifications: https://www.amazon.com/Oatey-30372-Tinning-Flux-8-Ounce/dp/B00176KQ32
Thanks.
Modeling the D&H in 1984: http://dandhcoloniemain.blogspot.com/