The ink formulation fulfills or exceeds the criteria of GE Nuclear Energy, GE Aircraft Engines, and the US Energy Research and Development Administration (nuclear grade).
It may leave a mark on any surface, including metal, plastics, steel, ceramic, glass, and concrete.
Under harsh weather and heat, the marks do not fade or disappear.
It is ideal for use in the welding industry, aviation and marine industries, power plants, automobile companies, and oil and natural gas refineries.
It has an aluminum body filled with ink and a felt-tip with a valve action for smooth ink flow.
Markings are visible at temperatures ranging from 500 to 2000 degrees Celsius (930-2000 F).