Platinum Carbon Black Ink

We've had a number of customers asking for Platinum Carbon Ink - enough so that we sourced this unique Japanese product for them. The ink comes in an elegant 60cc glass bottle (a touch over 2 ounces) - and is in a black box with Japanese characters (I have no idea what it says). Users of Carbon Ink fit into two groups - those who swear by it, and those who swear at it. So a caveat of caution is required for anyone unfamiliar with the ink. Platinum Carbon Ink is pigmented in order to improve its water-resisting property, light stability and heat-resisting qualities, while other inks might be illusive water-based dyes. Carbon Ink is thus suitable for important documents requiring archival qualities. Carbon Ink also performs well with watercolors or colored inks as Carbon Ink tends to resist running. This ink has many fine art applications, but many users enjoy its performance in fountain pens Relative to dye based inks Platinum Carbon Ink contains ultra-fine particles that may prove problematic for some fountain pen users. There are so many combinations of techniques, fountain pen styles, maintenance, humidity, etc. that your particular experience will need testing to make a personal judgment on this product. There should be no obstacles for brushes or dip pens. Forgeta-bout-it if you get this ink on your hands or clothing - it is not easy clean up. This ink goes down very black and seems to quickly dry waterproof. I soaked inked paper in water and all was stable. Being pigmented the ink should be lightfast - but I have no technical info supporting this.