3M Diamond Grade Fluorescent Work Zone Sheeting Series 3924S is an fluorescent orange retroreflective prismatic sheeting designed for the production of durable traffic control signs for the work zone.3M Diamond Grade Fluorescent Work Zone Sheeting Series 3924S is highly visible at wide angles to approaching traffic and at long sight distances.  Fluorescent orange is approved in the U.S. Manual on Uniform Traffic Control Devices for all construction/maintenance work zone signs and devices. 3924S sheeting has a distinctive seal pattern that is easily distinguished to assist work site inspection. May be applied to aluminum, medium and high density plywood, and reinforced plastic (FRP) substrates. See Product Bulletin 3924 for full details.