posca PC-5M Water-Based Paint Markers, Fluorescent Yellow 3-Count — Reversible Medium Tip, Opaque Quick-Dry

Posca PC-5M Fluorescent Yellow markers are water-based, opaque paint pens with a reversible medium tip designed for precise lines, bold fills, and lasting colour on over 50 surfaces.

These PC-5M paint markers from posca deliver bright, quick-drying pigment in a fluorescent yellow designed to pop on both light and dark backgrounds. The water-based formula creates an opaque, matte finish on porous surfaces and can be wiped clean from many non-porous materials. Each pack contains three pens with a reversible medium bullet tip that adapts to fine lines or broader strokes, making them a flexible choice for artists, crafters, and decorators.

How do these markers perform across different materials?

The PC-5M inks are formulated to work on more than 50 surfaces such as wood, glass, metal, plastic, ceramic, and leather. On porous surfaces the pigment bonds and becomes permanent; on many non-porous surfaces the colour remains vivid but can be removed if needed. They dry quickly to minimize smudging and are suitable for indoor and outdoor use.

• Opaque coverage on paper, wood, and fabric for bold fills and highlights
• Visible, erasable marks on glass, glazed ceramics, and metal when not heat-set
• Quick-dry formula reduces smear during layered work
• Water-based composition is low-odour and blends well with other posca colours

What makes the reversible medium tip useful for projects?

The PC-5M reversible bullet tip (approx. 1.8–2.5 mm) swaps orientation to give you two functional widths in a single pen. Use the finer edge for outlining and detailed work, then flip for broader strokes and faster coverage. The tip retains shape over repeated use and offers good control for both lettering and filling areas.

• Fine edge for crisp lines, letters, and accents
• Broader face for colouring, backgrounds, and bold strokes
• Durable bullet tip resists collapsing for consistent marks
• Ideal for mixed media where switching between detail and fill is needed

Are these markers safe and easy to use in everyday craft work?

Being water-based, posca markers are low-odour and more user-friendly than many solvent-based pens. They are quick to start—shake, depress the tip to prime, and you’re ready to draw. While permanent on porous materials, they remain removable on many smooth surfaces, so test a small area if removability matters.

• Shake before use and prime tip gently to activate pigment
• Low odour and water-based for comfortable indoor use
• Test non-porous surfaces before committing to permanent coverage
• Store horizontally to prolong tip life and prevent uneven ink flow

Who is this for? Creators who want a dependable, bright fluorescent yellow that works across crafts, signage, illustration, and hobby projects will appreciate this 3-count of posca PC-5M pens. These markers suit artists needing precise control and fast coverage, teachers and crafters making classroom displays, DIYers decorating glass or ceramics, and anyone wanting a bold, matte yellow that stands out on many surfaces.