[sdiy] Ultrasonic cleaner advice

[Roman]

I soak the boards in dirty IPA to remove most of it and break the solid surface of flux residues. It can be dirty AF, I replace it only once it gets dark yellow-gray. Then the boards go to ultrasonic cleaner with Electrolube SWAS. It smells nice, safe for you hands, and does the job nicely. Anyone who got my boards could confirm. The best part - it is not bothered with dirt and keeps it off the boards. According to datasheet it works up to 12% of contamination. I replace the fluid only after cople of thousands of PCBs.

Roman 

---- Użytkownik geoff james via Synth-diy napisał ----

>
>Hi, I've searched for advice on the best additive to an ultrasound cleaner.
>
>Too much info, it's confusing, and some bottled mixes cost an arm and a leg.
>
>My results seem medium rare. Missing pizzaz!!
>
>My current recipe is wash down with isopropyl (99.9%).
>Then add distilled water to tank+ a squirt of dishwashing detergent + 60 degrees Celsius.
>The boards are old and new FR4.
>
>Any thoughts.
>
>
>
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