PW Akkerman Shocking Blue #5 is a terrific ink. I reviewed it in great detail along with some other blue inks here and here.
Akkerman inks can be a bit of pain to find. I would suggest Diamine Majestic Blue as a suitable alternative.
Pentulant
by Christine Darling
I ordered a bottle of Shocking Blue from Akkerman (along with some others) and it’s on the way! I can’t wait to try it.
Many people believe Akkerman ink is Diamine rebottled, so I am not surprised that Majestic Blue is a close alternative. But with those pretty bottles, I don’t care if they are really just Diamine. 🙂