The purer the isopropyl (i.e., the higher proof, more alcohol/less water), the better; water leaves trace deposits of minerals on circuitry, which can cause damage when current is applied.
The wide distribution of high concentration alcohols at relatively low price is one of the few collateral benefits of the COVID Era. 70% has replaced 43-50% at the cheap end, and 91% is common. I've occasionally found pint bottles of 99% alcohol for $3 at my local Safeways and Walgreens; I used to pay $18 per liter for 99% alcohol electronic cleaner at my local electronics hobby shop, now sadly driven to extinction by that same COVID plague. *Naturellement*, you'll want to let the alcohol evaporate as much as possible before applying any kind of heat (hair dryer at absolutely lowest heat setting). Heat + alcohol = FIRE. Peter Adler Berkeley, CA/USA On Thursday, September 15, 2022 at 7:00:52 AM UTC-7 lconley wrote: > May want to take it apart and clean it with some isopropyl alcohol and > Q-tips, if it can be taken apart. I once had success cleaning a circuit > board of a Hilti laser rangefinder that had a battery leak. Also a hair > dryer on low may speed up drying. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/4c29324c-19d4-4076-b645-75687777a6c2n%40googlegroups.com.
