The tough marker for tough jobs, the Solid Marker is solidified paint in a marker form. It marks through dust, rust, mud, water – inside or outside. Dries within minutes, and is permanent once dry. Solid Markers won’t fade or wash off like chalk. The special “stay fresh” twist mechanism keeps paint fresh and ready to use. Ideal for use on wood, cloth & canvas, plastic, steel & iron, rubber, cardboard, glass, fiberglass & concrete. Solid marker features a tough, broad stroke, is quick-drying with low odor. This marker is widely used in commercial and industrial applications in construction, welding & fabrication, pipelines & drilling, assembly lines, automotive tires & windshields, HVAC, plumbing systems or with stencils. Working temperature range: 14°F to 392°F (-10°C to 200°C) 13 mm wide mark can be trimmed with knife for smaller marks. Alcohol based cleaners will remove ink from non-porous surfaces. Fluorescent colors are not lightfast.