Datrex Flexible USCG and MED IMO/SOLAS 4" Retroreflective Tape, Sold by the Inch. Rolls are 1800 inches (50 yards). Made from fully metalized, eight mil UV stabilized polymeric film. Extra durability is achieved through a custom laminating process that virtually eliminates trapped gas from the internal prisms. Highly reflective prismatic material is weather and solvent resistant. Backed with a PVC-based weather resistant material faced with permanent aggressive adhesive backing. For use on lifejackets, liferings, lifefloats, rescue boats, lifeboats and liferafts, plus anywhere light reflectivity is desired. The tape is marked with USCG/SOLAS.