Accuform Signs “DANGER DO NOT ENTER AUTHORIZED PERSONNEL ONLY” BlackRedWhite Do Not Enter and No Admittance Safety Sign measuring 10″ X 14″ is made of flexible, 4 mil thick vinyl with acrylic adhesive and the image is printed on non-glare surface. Adhesive vinyl sign is ideal for indoor usage, light-duty application, sheltered outdoor locations and adheres to most surfaces. It effortlessly mounts to all curved areas such as pipes, poles and secondary containers. Sign is resistant to moisture and has square corners as well as scored backing for quick peel-off application. Sign is designed to identify areas that are to have no access granted to them.