<div dir="ltr">I found this forum thread that looks like good info at the very bottom. I don't have an ultrasonic machine myself.<div><a href="https://boards.rossmanngroup.com/threads/ultrasonic-cleaner-residue.17236/">https://boards.rossmanngroup.com/threads/ultrasonic-cleaner-residue.17236/</a></div><div><br></div><div>ES132 seems to be the ingredient that adds pizazz.</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Sun, Dec 29, 2024 at 4:15 AM geoff james via Synth-diy <<a href="mailto:synth-diy@synth-diy.org">synth-diy@synth-diy.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div class="msg4557667847432999663">




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