This specification covers flexible white or colored, wide angle retroreflective sheeting (hereinafter called sheeting), tape and related processing materials designed to enhance nighttime visibility of traffic control signs and objects. The sheeting shall consist of enclosed glass bead lens (Type I and II) encapsulated glass bead elements (Type III) adhered to a synthetic resin and encapsulated by a flexible transparent plastic that has a smooth outer surface. (Type IV) Sheeting shall consist of prismatic lens elements encapsulated by a flexible transparent plastic that has a smooth outer surface, (Type VIII and IX) Sheeting shall consist of prismatic lens elements visible from the face of a smooth surface. The sheeting shall have a precoated adhesive protected by an easily removable liner. (Type XI) Sheeting shall consist of full cube prismatic lens elements visible from the face of a smooth surface. The sheeting shall have a precoated adhesive protected by an easily removable liner
