We are continuing on with reader request week, so today's ink is Sailor Sei-Boku. Sei-boku is a nano pigment ink. I purchased my sample of ink from Anderson Pens.
Sei-boku is a lovely blue black.
I love the depth this ink has. There's a few different shades of blue black and some interesting dark purple sheen in large swabs.
Let's take a look at how the ink behaves on fountain pen friendly papers: Rhodia, Tomoe River, and Leuchtturm.
Dry time: 40 seconds
Water resistance: High-I didn't notice any ink washing away.
Show through: Medium
On 20 pound copy paper the ink behaved well, no issues that I noticed.
I used a Waterman 52 1/2 then switched to a medium Pelikan M400 White Tortoise on Tomoe River paper. The ink had a lovely wet flow, it kept up with the flex nib really well.
I really like this ink in the flex nib, it had no problem keeping up with the wet flow.
Overall, I really like this ink. It has a lot of depth to the color, and has high water resistance. A bottle of it is going on my wish list. Give it a try, you might love it.
Disclaimer: I purchased this ink myself, and all photos and opinions are my own. There are no affiliate links on this page.