Certified valve action paint marker - Application: Perfectly suitable for use on stainless steel or superalloys in industries where protection against corrosion, pitting, and quality loss is important. Design: Xylene-free, with low levels of chlorides, halogens, low-melting metals, and sulfur. Certified according to U.S. and international specifications for the nuclear and tank industries. Certified to the following U.S. and international standards: EDF PMUC, MIL-STD-2041D, U.S. DOE RDT F-7-3T (expired), U.S. Navy C3070. Meets the following requirements: less than 200 ppm total halogens, less than 250 ppm total refractory metals, less than 300 ppm total refractory metals, less than 200 ppm sulfur. Advantage: The fast-drying formula provides abrasion-resistant as well as weather and UV-resistant markings. Can be safely used on stainless steel and other alloy metals where corrosion resistance is a must. Note: Analysis and certification of individual batches are available, providing quick and accurate information.