uni-ball 63704 PX-21 Fine Bullet Marker Green

Industrial-Grade Paint Marker

The uni-Paint PX-21 is an oil-based permanent marker built for industrial environments. It produces opaque, glossy marks on virtually any surface, including oily, greasy, dark or rough materials. The valve-action mechanism controls ink flow and prevents the tip from drying out when left uncapped. It is suited for manufacturing, construction, automotive and aviation identification tasks.

Fine Bullet Tip and Green Ink

The fine bullet tip delivers precise, clearly visible lines for detailed marking work. Green oil-based paint dries quickly and resists water, fading, heat and abrasion once cured. One marker provides long marking life thanks to the controlled flow system. Coverage remains consistent on metal, plastic, glass and other challenging substrates where conventional inks fail.

Metal Barrel Construction

A durable metal barrel protects the ink reservoir and withstands rough handling on job sites. The robust tip maintains its shape through repeated use on abrasive surfaces. Valve-action sealing allows the marker to be stored horizontally or vertically without leakage or drying. This design supports reliable performance for part identification, equipment labelling and safety marking outdoors.