Originally Posted by AfterThisNap
No, it's not . Nail polish will be fine an is, in fact, a suggested touch up for many a carbon mfg.
Really, it's the equivalent of a paint chip. I've seen frames with busted tubes that had carbon fragments threading out of the crack and people still rode them home.
Just dab that thing with nail polish and stop worrying.
My bad. I misspoke. Nail Polish REMOVER is primarily acetone. Nail polish is more like a varnish and would probably be just fine. But I would still lean toward a long setting epoxy