i think after i killed my second copic but before i figured out that you could pull the tips off and reload i murdered 2 or 3 by forgetting to make sure that the CLICK! when closing, i have found though that sometimes if you cap them back up even after killing them and leave them be for a bit sometimes the full damage isn't as bad as we thought before. And i'm not totally 100% on the alcohol i know that's what the colorless blender for copics is, but i dunno how it'll end up treating the color of the tool. Perhaps
Kayka might know! she's the only person on Dokuga i know that REALLY uses them on a daily for serious arts besides yourself, even i only hobby with mine so i dunno all about them that much!
doodleholic.deviantart.com/
g`luck my art pal!