Cleaning RK05 packs (Was: LGP-30 Memory Drum Update)

[Al Kossow]

91% IPA works fine.
99% is better though i'm skeptical it really is

https://www.quora.com/When-is-70-isopropyl-rubbing-alcohol-better-than-91



>> In the US, "rubbing alcohol" is mostly denatured ethanol (though "isopropyl rubbing alcohol" is mostly IPA), but always contains other chemicals as well.

https://www.lewisu.edu/academics/biology/pdf/isopropanol_91.pdf

IPA
Water