The U-Mark 100P Fine Line Industrial Paint Marker is designed for reliable marking on surfaces including rusty and oily metals, dry or damp wood, glass, plastics, rubber tape, cardboard, waxed cartons, ceramics, tiles, and concrete. Its precision valve ensures a steady paint flow, while the durable aluminum barrel and airtight cap withstand tough industrial conditions. The oil-based paint is highly resistant to UV exposure and outdoor wear, adhering effectively to challenging surfaces. Widely used by automotive professionals, steel recyclers, surveyors, and auto repair shops. Available in boxes of 12 markers.