First time using Platinum Carbon Black. Nice ink. Slightly worries about the health warning on the Cult Pens website though… : r/fountainpens

Platinum Carbon Black Ink Review

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Platinum Carbon Black

rupertarzeian, Fountain pen blog

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What's Up with the Platinum Carbon Desk Pen? - The Well-Appointed Desk

Platinum Pigment Ink is waterproof, permanent and lightfast. Quick-drying, it is great for artists and calligraphers using brush pens, fountain pens and dip pens. Made in Japan. Note to fountain pens users, these inks contain ultra-fine particles. It is best to not allow the ink to dry in the feed mechanism or cleaning of your pen may be required. 60ml bottle. Available in Carbon Black, Blue, Sepia and Rose Red.

Platinum Carbon Black Ink - 60 ml Bottle

Five Months: an Extended Test of Platinum Carbon Black Pigment Ink – Fountain Pen Follies

Platinum Carbon Black, questions : r/fountainpens