I was a little apprehensive about these but got the black ink kit on sale from an art store.
It definitely stains. I think it might contain butimen. All in all it's a good ink, leaves a ghost (size depending on solvent used to buff and time spent buffing).
Great marker overall, however, DO NOT add flowpen to this. It makes it super thick and when you write with it, the ink does not dry. So other than that, I liked it.
5.0 of 5 Stars! Average Rating
