Universal Rapidograph Waterproof Ink (Red) : Office Products

Waterproof ink can be used in fine art, craft, calligraphy or airbrush applications For use on paper, vellum, drafting film and tracing paper

Universal Rapidograph Waterproof Ink (Blue)

Drawing Ink Utrecht Art Supplies

Universal Drawing inks are suitable for a variety of applications including use in technical pens and refillable plotting points. White and black are opaque, other colors are transparent. For use on paper and film. Waterproof. #3080-F. Rapidraw is a fast drying waterproof ink for film. Erasable on film, short open pen time. Good ink for experienced technical pen users. #3084-F. Ultradraw ink is for use on paper and features slow drying ink for long open pen time.

Koh-I-Noor Universal 3/4oz Drawing Ink Black

Rapidograph Tech Pens

Koh-i-Noor Rapidograph Mixed Pen Set & Refills, India Ink, Drafting Vintage

Steven Reddy - Blog

Technical Inks – Chartpak Factory Store

Opaque dye-based ink with an intense color laydown

Koh-I-Noor Dye-Based Universal Drawing Ink 8 Oz. Bottle, Black

Koh-I-Noor Rapidograph Slim Pen and Ink Set, 7 Assorted Pen Nibs and .75 oz. Bottle of Ultradraw Black Ink, 1 Set Each (3165SP7) : Office Products

Universal Ink

Best Fine liner Pen for Art work and Architectural Design — Review & Buyers Guide-2022., by Rang Stationery

23ml Rotring Rapidograph Isograph Technical Drawing Waterproof Ink in Tube Red - Made in Germany S0216040 R591003

De Atramentis Cartridges - Liz Steel : Liz Steel