Grass Padrique | The Fabulous Scientist One of the most talked-about permanent black inks in the fountain pen world is Platinum Carbon Black Ink. It has been a favorite among artists, sketchers, and fountain pen enthusiasts for years, especially for people who need their writing to survive water, humidity, and time. What makes this ink different … Continue reading Ink Review: Platinum Carbon Black — The Waterproof Ink I Wish I Tried Sooner