National Marker Company sign with legend ?DANGER - Unauthorized Personnel Keep Out.? helps to alert the employees and visitors about the access restrictions. This sign emphasizes that only authorized person are permitted on certain section of the premises. The authorized person danger sign has black text printed on a yellow base that ensures legible letters with clear visibility. The ANSI compliant danger signage is weatherproof and ideal for both indoor and outdoor use. The danger signage features Sign Muscle coating that protects the text from fading, scratches, scuffing, graffiti, and mold. The UV-cured coating creates a strong bond and boosts color and clarity.