mc expert refillable graphite ink bottle with bladder 60 ml — bottle with internal reservoir

The mc expert refillable graphite ink bottle with bladder 60 ml is a compact refill container designed for controlled transfer of ink into pens, markers and small reservoirs. The bottle contains 60 ml of graphite-coloured fluid and features an internal bladder that separates the liquid from air during dispensing, reducing spills and slowing oxidation. The design focuses on precise dosing, airtight storage and convenient handling for workshops, offices and hobby use.

Advantages

The internal bladder enables smoother dispensing by collapsing as ink is drawn, which minimizes splashing and drip loss. The bottle’s narrow nozzle and stable body support accurate filling of pen converters, marker cartridges or small tanks without excessive waste. Airtight closure helps preserve ink consistency and colour, while the portable 60 ml capacity offers a balance between refill frequency and storage convenience.

Suitable for

• Refilling fountain pens, rollerball pens and markers
• Top-ups for small ink reservoirs in drawing and drafting tools
• Workshop and repair stations where neat, controlled dispensing is required
• Hobby and model-making projects that need precise ink application

Key specifications

• Capacity: 60 ml of graphite-coloured ink
• Internal bladder (collapsible reservoir) to reduce air contact during dispensing
• Nozzle: narrow tip for precise filling of small openings
• Closure: airtight cap to slow oxidation and prevent leaks
• Formulation: liquid ink suitable for pens and markers (graphite colour)
• Container material: rigid outer bottle with flexible internal bladder

How to use

Before first use, ensure the cap and nozzle are clean and intact. Open the cap and position the nozzle into the receiving pen or reservoir opening. Squeeze the outer bottle gently or compress the bladder as needed to start flow, controlling pressure to avoid overfilling. Withdraw the nozzle when the target reservoir reaches the desired level and immediately replace the cap to maintain airtight storage. If any ink contacts surfaces, clean promptly with a suitable solvent or water according to the ink’s compatibility.

Usage recommendations

Store upright in a cool, dark place and keep the cap tightly closed when not in use. Use on compatible writing instruments and test on a spare cartridge or converter if uncertain about compatibility. Avoid mixing with other ink formulations unless explicitly compatible.