Marker-chalk Staedtler Lumocolor Omnigraph 236 white — refillable liquid chalk marker for non-porous surfaces

Staedtler Lumocolor Omnigraph 236 white is a refillable liquid chalk marker formulated for writing and marking on non-porous surfaces such as glass, whiteboards, mirrors and metal. The marker delivers dense, opaque white ink that adheres well yet can be removed from suitable smooth surfaces, making it practical for technical notes, signage, window displays and temporary markings in retail, hospitality and office settings.

Advantages

The Lumocolor Omnigraph 236 combines a refillable design with a liquid-chalk formulation for consistent opaque coverage and long-lasting performance. Its tip produces clear, uniform lines with good opacity on dark and transparent backgrounds. The ink dries to a matte finish that resists smudging under normal handling and can be removed cleanly from compatible non-porous materials when required. Refillable capability reduces waste and operating cost compared with single-use markers.

Suitable for

• Window displays and shop signage
• Whiteboards and glass boards for meetings or planning
• Mirror markings in salons or fitting rooms
• Temporary technical notes on metal or coated surfaces

Key specifications

• Ink colour: opaque white suitable for high-contrast markings
• Ink type: liquid chalk formulation designed for non-porous surfaces
• Tip type: consistent tip for uniform line width and coverage
• Finish: matte, quick-drying surface with reduced smudging
• Design: refillable marker body to allow ink replenishment

How to use

Shake the marker well before use to ensure uniform ink flow. If the marker requires priming, press the tip gently on a protected surface until the ink saturates the tip. Apply even pressure while writing to achieve consistent opaque lines on glass, metal, mirrors or whiteboards. Allow the ink to dry briefly to reduce the risk of smearing. To remove markings, use a damp cloth, dry erase cleaner or appropriate non-abrasive cleaner suited to the surface material.

Usage recommendations

Test the marker on a small, inconspicuous area of the intended surface before regular use to confirm removability and compatibility. Store the marker horizontally when not in use to maintain tip saturation and refill according to the manufacturer's refill instructions to prolong service life.