Robert Oster Carbon Fire is a deep navy blue ink celebrated for its moderate shading and subtle red or pink sheen that emerges on specific papers and angles, adding an element of surprise to its otherwise professional appearance. It flows smoothly with medium wetness, dries quickly, and behaves reliably without feathering or bleeding. Ideal for those seeking a versatile blue with hidden character for daily writing or office use.
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Reviews & Resources
Robert Oster Carbon Fire Ink Review - The Pen Addict
This review praises Carbon Fire for its shading, subtle red or pink sheen visible on larger nibs, and standard Robert Oster performance including smooth flow, no feathering or bleeding, and 15-20 second dry time.
Ink Review #466: Robert Oster Carbon Fire
Carbon Fire offers nice wet flow, dark pink sheen in swabs, 30-second dry time, low water resistance, no feathering on fountain pen papers but some on copy paper, described as another great blue ink from Robert Oster.
Ink Review: Robert Oster Carbon Fire - The Well-Appointed Desk
Carbon Fire is a rich deep blue suitable for work with subtle red sheen appearing as a halo around edges, shows shading, writes slightly dry, and offers a surprising quality beyond standard blues.
Robert Oster Carbon Fire Ink Review - The Pen Addict
This page links to a review highlighting Carbon Fire's fantastic quality matching Platinum pens, with plenty of character in its performance.
Ink details on this page were generated with the assistance of AI and may not be fully accurate.