- Noodlers Blue Black (rated Near Bulletproof by Noodlers)
- Diamine Prussian Blue
- Noodlers Legal Lapis (rated Bulletproof by Noodlers)
- Noodlers Black (rated Bulletproof by Noodlers)
- Waterman Blue Black
- Waterman Florida Blue
- Noodlers Blue
Here is the "Before" scan of the inks written out on a clean white grid paper. For what it's worth these colours look fairly accurate on my monitor.

And then the paper was sliced vertically the length of the page...

The right hand half of the paper was submerged in a sink of water...

And left to soak for about 15 minutes. Here is a picture showing the blue in the Noodlers Blue Black floating off the page...

After letting the page dry it was taped back together and scanned once more.

The Waterman inks faired worse, almost disappearing from the page. The bulletproof and near bulletproof Nooders did excellently, as expected. The Diamine surprised me still, it did wash out some but is still perfectly legible. I love the Diamine Prussian Blue, it has good flow, is an excellent colour for me and now shows that it will survive a soaking. If anything I write needs to survive a soaking.
Enjoy,
Rick