Marker uni mitsubishi pencil Uni-Ball Paint PX-20 — black, stroke 2.2–2.8 mm

Uni-Ball Paint PX-20 black marker from uni mitsubishi pencil is a permanent paint marker that delivers opaque, glossy black lines with a medium stroke width of 2.2–2.8 mm. Designed for durable marking on a wide range of materials, it provides clear, consistent results on paper, cardboard and many non-porous surfaces such as metal, glass, plastic, wood and stone. The ink is water- and fade-proof, making it suitable for applications that require long-lasting visibility and resistance to handling and environmental factors.

Advantages

The PX-20 produces a consistent medium-width stroke (2.2–2.8 mm) that balances visibility and precision for general marking tasks. Its paint-based, opaque black ink adheres well to both porous and non-porous surfaces and dries to a glossy finish. The marker is formulated to be water- and fade-proof, supporting durable labels, permanent marks and visible signage. The robust tip and steady ink flow reduce skipping and maintain uniform lines over extended use.

Suitable for

• Labeling boxes, containers and inventory on cardboard and paper
• Marking metal parts, tools and components in workshops and construction
• Writing on glass, plastic and coated surfaces for identification or decoration
• Outdoor or indoor signage where permanent, visible black markings are required
• Arts, crafts and DIY projects that require opaque, glossy black lines

Key specifications

• Ink color: black
• Stroke width: 2.2–2.8 mm (medium)
• Ink type: paint-based, opaque
• Finish: glossy
• Durability: water-resistant and fade-resistant
• Usable on: paper, cardboard, metal, glass, plastic, wood, stone and other non-porous surfaces

How to use

Shake the marker well before use to mix the paint-based ink. Remove the cap and press the tip gently on a test surface until the ink flows evenly. Draw or write using steady pressure to produce a uniform 2.2–2.8 mm stroke. Allow the ink to dry fully on the chosen surface to achieve maximum opacity and durability. Replace the cap after use to prevent the tip from drying out.

Usage recommendations

For best results, use on clean, dry surfaces and test on a small area when working with coated or sensitive materials. Store horizontally or with the tip down for short periods to maintain consistent ink flow, and keep capped when not in use. Avoid prolonged exposure to direct sunlight to preserve the longevity of markings.