Because the pigment is so heavy, the ink is thick. In a fountain pen? Forget about it. Unless you are using a dip pen or a technical pen with a wide nib (0.5mm+), you will experience hard starts, clogging, and a very bad day. This is brush, ruling pen, or dip pen ink only.
This allows for the "watercolor wash over ink" technique without the fear of ruining the linework. For urban sketchers standing in the rain or architects erasing pencil grids under heavy markers, this reliability is worth the premium price tag. It is impossible to discuss Atrament Bold without touching on the elephant in the studio: Is this safe for skin? atrament bold
Let’s be crystal clear: However, the brand's sister line (Dynamic Black Tattoo Ink) shares the same chemical DNA regarding carbon source. The "Bold" aesthetic has bled into the tattoo world because of its behavior . Because the pigment is so heavy, the ink is thick
Most "waterproof" inks feather into a purple or blue halo. Atrament Bold doesn't budge. It sits on the paper like a layer of vinyl. Unless you are using a dip pen or