Uni Posca Paint Marker Pen Extra Fine Point 21-Color Set - Precise

In this review of the Uni Posca Paint Marker Pen set, the bottom line is simple: this 21-color kit is for crafters, artists and sign makers who need precise, opaque color in an extra fine tip. The set combines natural tones, pastels, metallics and white with a water-based pigment ink that is non-toxic, lightfast and waterproof, so it works across surfaces like wood, glass and canvas without bleeding through paper. For anyone tackling fine detail work, rock painting, small signage or mixed-media accents, the extra fine PC-1M tip delivers control and clean lines.

Key Features

• Water-based pigment ink: Provides lightfast, waterproof color that stays vivid on porous surfaces and resists fading.
• Extra fine point (PC-1M): Allows precise lines and detailed work for lettering, outlines and tiny highlights.
• Wide 21-color range: Includes natural colors, pastels plus gold and silver for versatile palettes without buying separate sets.
• Opaque coverage: Delivers solid color on dark and light surfaces, useful for rock painting, wood details and canvas accents.
• Multi-surface use: Writes on plastic, metal, wood, glass, plaster and more, expanding project possibilities.
• Original vinyl pen case: Keeps the markers organized and protected for travel or storage.

Who It's For

The kit suits hobby artists, crafters and students who want dependable, non-bleeding ink for fine work and small lettering; it is especially good for rock painting, scrapbook accents, wood decoration and mixed-media details. The extra fine tip is ideal when control matters more than broad coverage.

Those who need broad swaths of blended color, very large murals or solvent-based layering effects should look elsewhere; this set is optimized for precise marks and opaque single-layer coverage rather than heavy blending or markers designed for fabric dyeing.

Pros & Cons

Pros

• Excellent color variety and opacity, making small projects look professional.
• Smooth, controlled flow that customers note gives reliable paint control for fine details.
• Non-toxic, waterproof and lightfast pigment formula for lasting results on porous surfaces.
• Includes gold, silver and pastel options for added versatility in craft work.

Cons

• Not ideal for large-area coverage or blending where broader tips would be faster.
• Paint can be scraped off nonporous surfaces like glass unless sealed or left to cure.

Specifications

Brand	Uni
Model	PC-1M extra fine
Ink type	Water-based pigment ink
Color set	21 colors including gold, silver and pastels
Tip	Extra fine felt tip
Multi-surface	Plastic, metal, wood, glass, plaster, canvas
Case	Original vinyl pen case included

Our Verdict

The Uni Posca PC-1M 21-color set is a strong choice for anyone who values precise, opaque marks and long-lasting color. It offers great value with a broad palette, reliable flow and a compact case, making it worthwhile for hobbyists and detail-oriented artists who want consistent results across multiple surfaces.

Frequently Asked Questions

Are these markers waterproof once dry?
Yes, the water-based pigment ink is described as waterproof and lightfast once set on porous surfaces.

Can I use them on glass and remove the paint later?
Paint on nonporous surfaces like glass can be scraped off, so it is removable unless sealed or allowed to cure more thoroughly.

Will the ink bleed through paper?
No, the pigment ink does not bleed through paper like alcohol-based markers, making them suitable for detailed paper work.