The Platinum Carbon pen...
, July 30, 2009
The Platinum Carbon pen allows you to use the waterproof Carbon Ink in a
fountain pen. After having used this pen for a while, I can recommend it.
I also own the Rotring Art Pen, which is a similar concept. The Rotring uses
typical fountain pen ink, which washes away with any water-based media (like
watercolor). I also found the Rotring to have flow issues (it was difficult to
get it started). If you left it unused for a while, forget about using it
without some maintenance.
The Carbon pen seems to address these issues. Plus, it's cheap. I don't think
you'll find a better deal on a waterproof ink-based sketching pen. I'm really
pleased with this find. Maybe now I can stop lugging bottles of ink with me when