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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Noodler's Tchaikovsky Ink - 3 oz Bottle

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100% made in the USA from cap to glass to ink Archival quality Medium 3oz. Bottle

Noodler's Black Waterproof Fountain Pen Ink - Bulletproof,3 ounce

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Diamine Scribble Purple Ink - 80 ml Bottle

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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

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Diamine's superb fountain pen ink in a smaller 30ml bottle, perfect for trying out a range of colours, or if you just don't use ink quickly enough to need a larger bottle. 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 vegan-friendly.

Diamine Ink Bottle 50ml - Golden Oasis