Ink bottle Diplomat Octopus 30 ml — black sepia, glass bottle

Diplomat Octopus 30 ml ink in black sepia comes in a compact glass bottle designed for controlled pouring and convenient storage. Formulated for fountain pens and dip pens, this ink provides a dark brown-black tone suitable for everyday writing, sketching and calligraphy. The glass bottle preserves ink quality and makes transport and shelving simple while the small volume suits occasional users and those who prefer a portable refill option.

Advantages

The glass bottle offers stable storage that helps protect the ink from contamination and evaporation. The black sepia shade delivers a warm, dark tone with good legibility on a variety of paper types. The 30 ml size balances portability with enough volume for frequent refilling of one or two pens. The bottle neck and opening are designed to enable controlled pouring into converter reservoirs or dip pen wells, reducing spills and waste.

Suitable for

• Fountain pen refilling and converter top-ups
• Dip pen inking for drawing and calligraphy
• Everyday writing in notebooks, letters and journals
• Sketching and ink illustrations where a warm black-brown tone is preferred

Key specifications

• Volume: 30 ml
• Container: glass bottle with pour-friendly neck
• Color: black sepia (dark brown-black tone)
• Intended use: fountain pens and dip pens

How to use

Before refilling, ensure your pen components are clean and dry. For fountain pens with a converter, unscrew the pen, position the converter or cartridge opening over the bottle neck and carefully draw ink into the converter according to the pen manufacturer’s instructions. For dip pens, dip the nib into the bottle just enough to load the nib without submerging the entire nib holder, then remove excess ink by lightly tapping or wiping on a scrap of paper. Close the bottle tightly after use to maintain ink quality.

Usage recommendations

Store the bottle upright in a cool, dry place away from direct sunlight. Shake or invert gently only if manufacturer guidance indicates; avoid vigorous shaking. Clean pen nibs regularly when using pigmented or staining inks and test on scrap paper to confirm color and flow before writing on important documents.