Uni POSCA PC-3M Paint Marker 0.9-1.3mm Fine Bullet Tip - Set of 8 Colors

Uni POSCA PC-3M 0.9–1.3mm fine bullet tip paint markers for versatile art, lettering, and multi-surface craft work — set of 8 vibrant water-based colors.

The Uni POSCA PC-3M is the most widely used marker in the POSCA range. Its 0.9–1.3mm bullet tip sits between ultra-fine and medium, giving you enough control for detailed work while covering surface area faster than a pin tip. This set includes 8 colors: Black, Yellow, Pink, Red, Dark Blue, Light Blue, Green, and White — a complete foundation palette for art, craft, and design on almost any surface.

Key Features

• 0.9–1.3mm bullet tip → writes fine lines and fills small areas with ease → the go-to tip size for most art and lettering projects
• Opaque water-based pigment ink → covers both light and dark surfaces without bleed-through → colors appear true and vivid on any background
• Shake-to-mix mechanism → press the tip to activate → delivers consistent, even ink flow from first use to last
• Water-resistant when dry → finished work resists light moisture and does not smear → suitable for both indoor and outdoor decorative projects
• Non-toxic, water-based formula → no strong fumes → safe for classroom, studio, and home use by all ages
• Set of 8 colors → covers primary, secondary, and neutral tones → a ready-to-use palette for most standard projects without buying singles

Where You Can Use This

• Ceramic and pottery decoration — paint intricate patterns, florals, and lettering on vases, mugs, and tiles
• Rock and stone painting — the bullet tip covers more surface than a pin tip while still allowing detail work
• Lettering, hand lettering, and sign writing on paper, cardstock, and chalkboards
• Fabric art on canvas shoes, tote bags, jackets, and denim — use on pre-washed fabric for best adhesion
• Glass bottle and jar decoration for home decor and gifting projects
• Scrapbooking, art journaling, and mixed media projects
• Mandala art, illustration, and pattern work where both outlines and fills are needed
• Wooden surface painting — MDF boards, photo frames, and decorative boxes

Pro Tips

Before first use, shake the marker with the cap on, then press the tip on scrap paper 4 to 5 times to prime the ink flow. The bullet tip can be used at different angles — press lighter for finer strokes, or use the full tip face for broader fills. For layering, allow the first coat to dry completely before applying the next. On non-porous surfaces like glass or ceramic, cure for 24 hours before handling for maximum durability.

Complete Your Setup

Pair this set with the POSCA PC-1MR 0.7mm Extra Fine Set for detailed outlining and fine work that complements the PC-3M fills. Add a Smooth Painting Stones Pack for rock art projects. A Mixed Media Pad or Black Cardstock gives you the best surface to showcase opaque POSCA colors. For broad background coverage, the POSCA PC-5M Medium Tip Set is the natural next step.

Frequently Asked Questions

Q: What is the tip size of the PC-3M and how does it compare to other POSCA markers?
A: The PC-3M has a 0.9–1.3mm bullet tip, which is finer than the PC-5M (1.8–2.5mm) but broader than the PC-1MR (0.7mm pin tip). It is the most versatile size in the range, suitable for both detailed work and moderate fills.

Q: Can I use the PC-3M on ceramic and pottery?
A: Yes. POSCA markers write on unglazed and glazed ceramic surfaces. For decorative use, the ink holds well after drying. For food-contact items, seal with a ceramic-safe varnish and avoid dishwashing to preserve the finish.

Q: Can I use these on fabric?
A: Yes. Use on pre-washed fabric and heat-set the dried ink with an iron using a cloth between the iron and the fabric. Avoid frequent machine washing after application to preserve the colors.

Q: Are POSCA PC-3M markers suitable for outdoor use?
A: POSCA ink is water-resistant once fully dry and holds up to light outdoor exposure. For long-term outdoor durability, seal the finished surface with a UV-resistant clear varnish.

Q: How do I refill or extend the life of a PC-3M marker?
A: POSCA markers are not refillable, but the ink life is long when stored horizontally with the cap on. If the tip dries out, dip it briefly in water and re-press to reactivate the flow.