3M High Intensity Prismatic Reflective Sheeting Series 3930 is a non-metalized microprismatic lens reflective sheeting designed for use in the production of durable reflective traffic control signs and delineators that are exposed vertically in service.Series 3930 sheeting outperforms its competitors with long-term reflectivity and durability while achieving excellent life cycle costs. Exceeds ASTM D 4956 Spec Type III and IV. Not only is 3M high intensity prismatic sheeting bright and durable, it’s better for the environment. The manufacturing process for prismatic sheeting reduces VOC emissions by 97 percent and energy consumption by 72 percent compared to standard engineer grade.