Century’s Stainless Steel Marker is an industrial grade valve action paint marker for all surfaces. It is made up of an aluminum body filled with ink & a felt-tip with valve action for smooth ink flow. The ink has very few traces of chloride, sulphur, low melting metals & halogens which won’t contaminate or scath the surface being marked. The ink formulation meets or exceeds the specifications for GE Nuclear Energy, GE Aircraft Engines and the US Energy Research and Development Administration (nuclear grade). It can mark on all surfaces including metal, plastics, steel, ceramic, glass, concrete etc. The markings do not fade or remove under adverse weather conditions & heat too. It is ideal for welding, aircraft industries, marine industries, power plants, automotive plants, and oil and natural gas refineries.