posca Water-Based Paint Markers, Broad 8mm Chisel Tip — Yellow 2-Pack, Opaque Coverage Removable on Glass

posca uni PC-8K is a pair of 8mm water-based chisel-tip paint markers in bright yellow, built for bold strokes, large-area coverage and washable nib maintenance.

The PC-8K from posca brings a broad, 8mm chisel tip together with opaque, water-based pigment designed to work across more than 50 surfaces. Use these markers to add vibrant, non-toxic colour to skateboards, glass, wood, metal, ceramics, fabrics and more. The ink delivers permanent results on porous materials and is removable on most smooth, non-porous surfaces — offering flexibility for both lasting artwork and temporary signage. Each pack contains two yellow markers ideal for layering, blending and covering large areas quickly.

How does the 8mm chisel tip perform for different line styles?

The chisel-shaped 8mm nib is engineered for versatility: lay it flat for broad coverage, tilt it for sweeping curved strokes, or use the edge for precise lines and calligraphic effects. Artists and crafters can switch between bold fills and controlled outlines without changing tools, making these markers efficient for sketching, signage and decorative work.

• Flat face creates wide, uniform fills and backgrounds
• Angled edge produces crisp, tapered strokes and lettering
• Tip width retains consistent ink flow for even coverage
• Removable nib allows cleaning or replacement to extend life

Will posca PC-8K yellow work on the materials I use?

Yes — these water-based markers are formulated to mark more than 50 different substrates, from porous to smooth. They dry quickly and remain permanent on porous materials like wood and paper, while they can be wiped off or repositioned on many non-porous surfaces such as glass and glazed ceramics.

• Permanent on porous surfaces—wood, canvas, untreated fabric
• Erasable or removable on many non-porous surfaces—glass, gloss metal
• Suitable for indoor and outdoor use when applied on compatible substrates
• Non-toxic pigment makes them suitable for studio and craft environments

How can I blend, layer or maintain the ink and nib?

POSCA paint is water-based, so you can blend colours on porous surfaces or use a damp brush for softened transitions. For maintenance, the chisel nib can be removed and rinsed to clear blockages and recover consistent flow, extending marker life and keeping colour true.

• Mix wet-on-wet for subtle gradients; layer after drying for opaque coverage
• Use water or a wet brush to soften edges and create painterly effects
• Remove and rinse the nib under water to remove dried pigment or debris
• Shake and depress tip before first use to ensure steady ink flow

Are these markers safe and what should I expect from coverage?

POSCA markers are water-based and non-toxic, suitable for general art and craft use (not intended for children under 12). The yellow in this 2-count pack is vivid and opaque, giving strong coverage with fewer strokes compared with standard markers, especially on light or untreated surfaces.

• Non-toxic, water-based formula for studio and hobby use
• High-opacity pigment reduces the need for multiple coats
• Quick-drying finish helps prevent smudging during projects
• Not designed for children under 12—adult supervision recommended

Who is this for? The posca uni PC-8K 8mm yellow paint marker 2-pack suits illustrators, sign-makers, crafters and DIY decorators who need a robust, versatile marker for bold colour, wide fills and expressive lettering. It’s a smart choice for anyone working on mixed-media projects, outdoor gear, interior accents or temporary window art who wants opaque pigment, easy blending and the option to clean or replace the nib for long-term use.