In my continuing test of De Atramentis DOCUMENT BROWN today was the time for stand-off with Platinum PIGMENTED SEPIA. I have just a small sample of SEPIA that I used only once, long time ago, for the initial examination. I cannot recall the pen I used for testing it, but remember being a bit surprised – I know many tones are being called “sepia”, but to my sorry eyes this was rather a dark and dusty pink. Not bad in itself, but not what I was expecting either. I tried to color-match the scan so at least on my monitor it looks close to actual shade.
At the time I washed it over with fountain pen inks, to test it for dissolving or bleeding, but it held perfectly. No problem on that front, it seems, but since it was just an one-time example, I cannot vouch for it completely. But based on CARBON BLACK, my long-time sketching companion, it should do pretty well. My tastes have changed over time so even the color didn’t seem odd today (it might suit very well watercolor portraiture) and I might give it a go again soon.
In comparison, DOCUMENT BROWN is darker in tone, used directly from the bottle. But De Atramentis has a special dilution agent which can render the shade as bright as you wish. It can also be intermixed with other colors from the DOCUMENT range, to fine tune the desired shade. But I have yet to try that also.
Judge by this cut-out details for yourselves, but I would say they are both resistant and waterproof equally well. The eventual preference would probably boil down just to the actual shade (although one can tune the tone of DOCUMENT BROWN but not the other).