Single Coated Specialty and Foam Tapes 800 Series   –  Phosphorescent stage, theatrical and safety   –  7.3 mil phosphorescent, non-toxic, non-radioactive, self-extinguishing backing; glows in total darkness after 30 seconds exposure to natural or artificial light (available in 1 hour or 8 hour intensity). Used for stage, theatrical and safety applications where there is little or no light to identify walkway markers and objects.   –  Carolina Tape   –