Cryogenic tape for the identification of metal racks and other metal containers used for short and long-term storage in liquid nitrogen Dewars (-196°C/-321°F), or ultra-low temperature freezers (-80°C/-112°F). Ideal for labeling stainless-steel and aluminum racks, X-ray cassettes, metal sleeves, canes and canisters, film cans and more. The cryo tape will also withstand transport on dry ice, multiple freeze-thaw cycles, and sterilization by gamma irradiation (up to 50 KGy). Writable with our permanent cryo markers, the cryo tape for metal surfaces is available in a variety of colors for color coding and easy identification.