JT997 conspicuity marking tape is composed of cube corner(micro-prismatic) retro-reflective elements integrally bonded to a flexible, smooth-surfaced tough and weather resistant UV stabilized polymeric film. The prism surfaces are coated with a vacuum deposition of aluminium to provide a mirror surface to the prism facets.The resulting material is not more than 0.2 mm thick, and comes with an aggressive high-tack pressure sensitive adhesive.The product is single layer, with no need for edge sealing.