Smd flux

PRR

Member
Paid Member
2003-06-12 7:04 pm
Maine USA
www.diyaudio.com
This is in my bathroom....

NoCorode-------------42.jpg
 

PRR

Member
Paid Member
2003-06-12 7:04 pm
Maine USA
www.diyaudio.com
used to call toothpaste?
Uh, no. Dunton Nokorode has been a standard plumbers flux in the US for over a century. It is very much like what suzyj was mixing-up above, with petrolatum/Vaseline, except instead of rosin it has zinc chloride. It is less corrosive than acid-based fluxes, but it is "no corrode" only on PIPES and heavy wires, NOT for fine-wire electronics (and certainly not SMD).

The package didn't change for about 55 years, and then they added the zip-code to the postal address. (A lot of eBay sellers don't notice this.)

Nokorode had a book of tips: Nokorode soldering kinks 1917

Why it it in my bathroom? It's just a copy of the lid, set into a drawer-pull. Somebody thought it was decorative. But today I happened to be working next to that drawer and it caught my attention.
 
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This is what I use. The liquid flux is made by dissolving rosin in IPA. The paste in the plastic container is what it's used for soldering pipes, but I heard that it's corrosive and can destroy PCBs, so I only use it for wires. The seringe paste is made using Suzy's method.
 

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