This black valve-action paint marker provides low-corrosion marking from -50°F to 150°F (-46°C to 66°C). Its fast-drying paint leaves wear-, weather- and UV-resistant marks on stainless steel, alloy metals and superalloys, for use in aviation, aerospace, welding, oil and gas, military and power-generation settings. The xylene-free formula has less than 200 ppm sulfur and total halogens, less than 250 ppm of each low-melting-point metal, and less than 300 ppm total low-melting-point metals. Individual lot analysis and certification are available through Markal.