3M™ Engineer Grade Prismatic Reflective Sheeting is a non-metalized, microprismatic lens retroreflective sheeting designed for the production of commercial and non-critical traffic control signs. The 3430 Series sheeting features unique micro-sealed prismatic lens technology to help enable visually uniform copy, images and graphics, making it appear more visible than beaded sheeting. Watermarked with a visible “EGP” marking and coated with a transparent, pressure-sensitive adhesive, this durable sheeting offers long-term reflectivity.3M innovation brings the microprismatic retroreflective optics technology to Engineer Grade level where the need for good performance and 3M reliability meets economy. 3M Engineer Grade Prismatic Reflective Sheeting Series 3430 features reliable retroreflective microprismatic optics designed for commercial and non-critical signing application. It meets ASTM D4956 Type I and is compatible with 3M Inks and Films series 880N and 880I.