[sdiy] Ultrasonic cleaning solutions

Roman Sowa modular at go2.pl
Thu Sep 28 14:46:07 CEST 2023


Electrolube SWAS.

Water based, smells nice (if you like that kind of smell) and does 
marvelous job. It can be dirty as hen house floor and still does its 
magic. Unlike IPA, which only takes one drop of dirt in 5L tank to make 
it unuseable.
I change mine only every couple of years.

Roman

W dniu 2023-09-28 o 10:00, Andrei Kudryavtsev via Synth-diy pisze:
> Hi All,
> I have PCBs with SMD and TH parts, and also with plastic connectors. SMD 
> parts are machine soldered, TH components are manually installed. 
> Obviously some flux residue is visible from manual soldering.
> I have a 22L ultrasonic cleaner with a temperature control.
> The boards are quite large, like 100x250mm or so.
> Wondering if you can share some experience using an ultrasonic cleaner 
> to avoid solvent based sprays and mechanical cleaning.
> There are some threads of using IPA inside small zip lock bags to avoid 
> evaporation, which seems to work well for small boards and is relatively 
> safe. However it's not my option due to the board size.
> I also see some "ultrasonic flux remover" detergents on eBay, but for 
> some reason they are all in the UK.
> Also I found the specialized Flux Off by Chemtronics but have never 
> tried it.
> Please, suggest.
> 
> -- 
> Andrei Kudryavtsev,
> 
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