Hello and happy new year!
I am again deeply in love with Platinum's blue black ink. I use it in a 3776 with the slip n seal cap.
The ink is just wonderful with it's rich blue tone, the shading and the slightly shimmery sheen. Understated but the most beautiful colour I have ever seen in an ink.
However, I am a little bit afraid to use this ink in my other more expensive pens. I have no doubts that the 3776 will hold up against it pretty well as Platinum supplies this ink with the pen and the slip n seal cap works absolutely flawlessly.
But my Custom 823 does not have this cap mechanism and even worse, it has the metal rod inside the barrel. True, this is stainless steel and the ink SHOULD not harm the material, but there are reports of iron gall damaging stainless steel nibs and I think better safe than sorry with a pen out of this price range.
The problem is, there might be no such ink as the Platinum BB. What I have tried so far:
- Pilot blue black
- Herbin Bleu Nuit
- Diamine blue black
- R&K Verdigris
- Montblanc Midnight Blue (the non-IG)
And of course, although both are IG:
- R&K Salix
- Pelikan blue black
But maybe there are other good suggestions? The ink should only have a slight water resistance (so that written text could be recovered).
What I absolutely hate about a blue black ink is when it shows the slightest hint of green or teal. The ink looks really dirty to my eyes when it does that.