Uni Pin Fine Line Waterproof Pens

Uni Pin Fine Line Waterproof Pens — Crisp, Precise Lines for Artists & Illustrators

Uni Pin Fine Line pens are a firm favourite among artists, illustrators, architects, and designers for their exceptional consistency and reliability. Using fade-proof, waterproof pigment ink, they deliver clean, precise lines that won't bleed or smear — even when combined with watercolour washes.

• Waterproof & fade-proof — pigment ink that holds up to watercolour, markers, and time
• Range of nib sizes — from ultra-fine 0.03mm to bolder 0.8mm, for every level of detail
• Multiple tones — available in black, dark grey, and sepia for varied line work and tonal drawing
• Smooth, consistent flow — no skipping or blobbing, even on textured paper
• Ideal for sketching, inking & portfolio work — trusted by professionals and students alike
• Compatible with watercolour — layer washes over dried ink for beautiful mixed media results

Whether you're inking illustrations, creating detailed technical drawings, or adding fine line detail to watercolour work, Uni Pin delivers every time. Get in touch if you need help choosing the right nib size.