The ink from Frixxion pens disappears with time. I found out the hard way when I went to re-read my MLaw notes a few years after writing them.
The ink from Frixxion pens disappears with time. I found out the hard way when I went to re-read my MLaw notes a few years after writing them.
I've heard that they sometimes reappear when frozen, though not sure if that applies to natural discolorations as well.