The Best Waterproof Fountain Pen Inks

We tested our huge selection of fountain pen inks to find out which can stand up to spills and which will just melt away. Choose from our recommendations, or check our comparison tables of all of our waterproof and water-resistant inks.

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Diamine's superb fountain pen ink in an 80ml bottle. Diamine has manufactured in England since 1864. Diamine ink is safe to use in all brands of fountain pen and is one of the finest inks available. The huge range of over 100 colours are all water-based, acid-free and non-toxic, and are vegan-friendly. The Diamine bottle is a retro delight with its ribbed design. Bottle contains 80ml (approx 2.8 fluid oz).

Diamine Bottled Ink 80ml Mediterranean Blue

Swear Pens, With the help of wax pens, you can dab while moving and do not need a vaping rig or a lighter to do the task.

Rohrer & Klingner Eisen-Gallus-Tinte Salix (Iron/Gall-Nut-Ink

JetPens Japanese Stationery & More! on Instagram: Finding a waterproof fountain pen ink can be tricky. That's why we tested ✨every single one✨ of our fountain pen inks to discover which