Eric Keith Longo's Blog – January 2026 Archive (1)

Determining Live Ink Sharpie vs Preprint (Updated 2.21.26)

I had written this out in a thread but thought this information might get more visibility as a blog so I rewrote it for more accuracy. I hope you find it useful:

Why do black and blue Sharpie's "flash" orange (Updated 2.21.26)?

It is called "bronzing" or "sheening."

A standard Black Sharpie does not use a "pigment" in the traditional sense. It uses organic dyes. Specifically, it relies on a chemical cocktail that mimics black, rather than using a…

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Added by Eric Keith Longo on January 22, 2026 at 7:00am — 7 Comments

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