| Electronics > Repair |
| Ultrasonic cleaner size: 10L vs 6L |
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| tooki:
--- Quote from: SolderOcelot on July 15, 2024, 10:27:54 am --- --- Quote from: jpanhalt on July 15, 2024, 10:24:30 am ---The frequently observed "white residue" probably requires a saponifier (alkaline) remover in water. --- End quote --- Were you secretly thinking of dish soap when you typed this? If so, whisper it in my ear and I'll add it to my solution next time. --- End quote --- As I already told you: dish soap is NOT a saponifier! Stop fixating on dish liquid, no matter what you've seen "everyone" do. Automatic dishwasher detergent is likely alkaline enough to do the job, but at the expense of possibly being too corrosive. Aqueous, saponifier-based flux removers/PCB cleaners are designed to include corrosion inhibiters and generally be suited for electronics. |
| tooki:
--- Quote from: watchmaker on July 15, 2024, 04:02:01 pm ---As noted above,yes, hand soap. And the brass brush has to be very soft, like camel hair almost. --- End quote --- For cleaning watches perhaps. But the question is about cleaning PCBs, and for that, hand soap or dish liquid is pointless -- at least if flux is to be removed. |
| CaptainBucko:
FYI Attached is the datasheet and SDS of ChemTools Kleanium Printed Circuit Board & Electronic Parts Cleaning Solution which I have been using with success in my UltraSonic cleaner. |
| jpanhalt:
There are lots of similar water-based flux removers with saponifier. The ChemTools product has the same basic formula of a glycol ether and ethanol amine or other strong base. 2-butoxyethanol (and others) is used in other removers and goes by a trademark class name of cellosolve. The later is used at a final concentration of about 10% . I didn't see at first glance whether the ChemTools product is used neat or diluted. |
| CaptainBucko:
--- Quote from: jpanhalt on July 16, 2024, 10:16:24 am --- I didn't see at first glance whether the ChemTools product is used neat or diluted. --- End quote --- They say to use it neat and that is all that I have done. I only put a small amount inside a plastic zip lock bag with the item I want to clean, and then place the sealed bag in normal tap water in the cleaner. |
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