Even with isopropyl alcohol, I cannot have a clean board. I use either Qtip, but it leaves fibers, or teeth brush (but my son don't like the taste after). What can I
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Ask iFixit: Everything You Wanted to Know About Isopropyl Alcohol | iFixit News
Did I screw up my PCB? 75% isopropyl alcohol and 25% acetone mixture used for cleaning rosin flux off PCB. PCB was glossy but is now matte and sticky. Not sure if