I thought it might be useful to have a thread that lists writers experiences of fading inks. I usually try and avoid inks that fade a lot, but some fade only a little and while this doesn't bother me too much it might bother others. For ease of reading, perhaps we can devise a grading of fading as follows:
Significant: the ink fades very significantly, either in terms of a big change of colour or in shade or has disappearing or unreadable text.
Moderate: The text is still readable, but there is a noticeable shift in colour or shade but it is still, more or less, the colour it proclaims itself to be.
Mild: Some fading, but you have to look hard at comparisons to notice.
For me, I would like to avoid inks that have significant fading. Sometimes this can be noticeable within weeks of laying the ink on the page and at other times it doesn't become apparent until a year or two later. Thankfully I have yet to discover a 'significant' fading ink.
Here's my list:
Iroshizuku Fuyu-Gaki (Moderate)
Waterman Mysterious Blue (Moderate)+
Montbanc Royal Blue (Moderate)
Noodler's Cactus Fruit Eel (Mild)
Diamine Majestic Blue (Mild)
Akkerman Verhoot (Mild)
Noodler's Purple Martin (Mild)
Sailor Bungbox Happiness (Mild)
J Herbin Blue Pervenche (Mild)
Montblanc Leo Tolstoy (Moderate)*
Pelikan Edelstein Topaz (Mild)
Montblanc Dark Blue (Moderate)
+I'm a little concerned about this one. I haven't had it long and it has faded very noticeably.
*This discovery hurt. I love this ink. It seems to survive alright in a normal nib, but a stub nib highlights the shift in shade.