Ink bottle Diplomat Diplo Octopus 30 ml glass blue

Diplomat Diplo Octopus 30 ml glass blue ink is a liquid fountain pen ink supplied in a compact, transparent glass bottle. Formulated for use with fountain pens and other ink-compatible writing instruments, this blue ink offers standard pigmentation suitable for everyday writing, note-taking and correspondence. The glass container facilitates controlled pouring and secure storage while allowing visual monitoring of remaining ink.

Advantages

The ink delivers consistent flow and reliable color saturation appropriate for routine handwriting tasks. Its formulation minimizes clogging in most fountain pen feeds when used as directed, and the glass bottle design reduces the risk of accidental spills while providing a stable base for filling converters or nib units. The 30 ml volume is convenient for regular users who need a moderate supply without excess storage volume.

Suitable for

• Fountain pens and piston/converter filling systems
• Everyday handwriting, note-taking and correspondence
• Home, office and school use
• Refilling ink cartridges where compatible

Key specifications

• Volume: 30 ml
• Container: transparent glass bottle for easy level monitoring
• Color: blue
• Compatibility: suitable for fountain pens and other ink-compatible writing instruments
• Presentation: screw-top bottle designed for controlled pouring and filling

How to use

Before filling, gently invert the bottle or shake briefly if recommended by the pen manufacturer. Open your fountain pen according to its instructions, then use the converter, piston or dip method to draw ink into the pen. Pour carefully from the glass bottle into the pen’s filling system or into a suitable inkwell, avoiding overfilling. After filling, wipe the nib and section with a lint-free cloth to remove excess ink and securely close the bottle to prevent evaporation and contamination.

Usage recommendations

For best results, use with pens in good working condition and clean feed systems regularly. If switching from a different ink type, flush the pen with clean water before filling. Store the ink bottle upright in a cool, dark place and keep it tightly closed when not in use to preserve color and flow characteristics.