Fountain pen ink Diplomat Diplo Octopus 30 ml glass bottle, brown

Diplomat Diplo Octopus 30 ml in brown is a dye-based fountain pen ink supplied in a glass bottle, formulated for reliable flow and consistent color in everyday writing. The 30 ml glass container provides stable storage and a convenient neck for easier filling of fountain pens. This brown ink is suitable for notes, journaling, signing documents and daily correspondence where a warm, neutral ink tone is required.

Advantages

The dye-based formulation offers smooth, consistent flow and dependable performance across a wide range of fountain pens. The glass bottle protects the ink from contamination and light exposure, helping preserve color integrity over time. Its medium brown color provides good legibility on white and cream papers and dries at a moderate speed for reduced smudging during normal use.

Suitable for

• Everyday writing and note-taking
• Journals and personal diaries
• Signing documents and correspondence
• Office and study use

Key specifications

• Volume: 30 ml
• Formulation: dye-based fountain pen ink
• Packaging: glass bottle with filling-friendly neck
• Color: brown (medium tone)

How to use

Unscrew the cap and use the bottle neck to fill a converter or cartridge-compatible fountain pen according to the pen manufacturer's instructions. Avoid contaminating the ink by ensuring pens and filling tools are clean and dry before use. Close the bottle tightly after use and store upright in a cool, shaded place to maintain ink quality.

Usage recommendations

Use with fountain pens designed for liquid inks; test on a scrap sheet to check flow and drying time on specific paper types. For long-term pen storage, flush the pen if changing ink color or before extended inactivity to prevent clogging.