[sdiy] Ultrasonic cleaner advice

[geoff james]

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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