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Old 7th Mar 2018, 7:29 pm   #5
WME_bill
Octode
 
Join Date: Oct 2007
Location: Exeter, Devon, UK.
Posts: 1,553
Default Re: Flux dispenser recommendation requested

Fluxite. Following Barrymagrec comment.
He is quite right for modern Fluxite. Contains zinc chloride which gives of hydrochloric acid when heated and cleans copper and everything else very well. Easily recognised as the tin has a nice demon on it, and a red warning about dangers of eating it.

But original Fluxite is rosin based, and non-corrosive. Same as used in cored solder. An all green tin, and an amiable demon. I still have two large tins of it. Turn up from time to time in garage clearance sales and when hobbyists die off. If anyone wants to experiment before I lose interest, send me a PM and I'll make up a small package for you.

I have thought of experimenting with dissolving rosin in isopropyl alcohol which will give the same thing I think. When heated, smells like I used to get when stripping wartime radio sets. Get your rosin from a violinist or similar shop. I also use this as a paper adhesive. And non corrosive.
I also use a liquid flux ex Radiospares. Clean off with IPAlcohol

Half the fun of repairing old electronics is re-inventing the old techniques and materials.
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