All markers intended for use on Stainless Steel must have only trace amounts of halogens, sulfur, and low-melting metals to prevent cracking or weakening of the metal. All of our Low Chloride Markers meet or exceed the requirements of the United States Energy Research and Development Administration"s RDT Standard F-7-3T. An independent laboratory"s Certification of Analysis is traceable to the marker and is available for all of our low chloride markers. The Nissen low chloride feltip paint marker utilizes a valve action to dispense a fast-drying, high gloss enamel paint. Marks on rough, smooth, wet, oily and dry surfaces. Marks will withstand heat and weathering, they won"t chip, peel, fade or rub-off. Long-lasting replaceable 1/8" fiber tips. Blue color.